21633040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:129

約数の個数: 160

約数和(自身を含む): 61996032

約数和(自身を除く): 40362992

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 31, 40, 44, 52, 55, 61, 62, 65, 80, 88, 104, 110, 122, 124, 130, 143, 155, 176, 208, 220, 244, 248, 260, 286, 305, 310, 341, 403, 440, 488, 496, 520, 572, 610, 620, 671, 682, 715, 793, 806, 880, 976, 1040, 1144, 1220, 1240, 1342, 1364, 1430, 1586, 1612, 1705, 1891, 2015, 2288, 2440, 2480, 2684, 2728, 2860, 3172, 3224, 3355, 3410, 3782, 3965, 4030, 4433, 4880, 5368, 5456, 5720, 6344, 6448, 6710, 6820, 7564, 7930, 8060, 8723, 8866, 9455, 10736, 11440, 12688, 13420, 13640, 15128, 15860, 16120, 17446, 17732, 18910, 20801, 22165, 24583, 26840, 27280, 30256, 31720, 32240, 34892, 35464, 37820, 41602, 43615, 44330, 49166, 53680, 63440, 69784, 70928, 75640, 83204, 87230, 88660, 98332, 104005, 122915, 139568, 151280, 166408, 174460, 177320, 196664, 208010, 245830, 270413, 332816, 348920, 354640, 393328, 416020, 491660, 540826, 697840, 832040, 983320, 1081652, 1352065, 1664080, 1966640, 2163304, 2704130, 4326608, 5408260, 10816520, 21633040]

約数ペア:

[(1, 21633040), (2, 10816520), (4, 5408260), (5, 4326608), (8, 2704130), (10, 2163304), (11, 1966640), (13, 1664080), (16, 1352065), (20, 1081652), (22, 983320), (26, 832040), (31, 697840), (40, 540826), (44, 491660), (52, 416020), (55, 393328), (61, 354640), (62, 348920), (65, 332816), (80, 270413), (88, 245830), (104, 208010), (110, 196664), (122, 177320), (124, 174460), (130, 166408), (143, 151280), (155, 139568), (176, 122915), (208, 104005), (220, 98332), (244, 88660), (248, 87230), (260, 83204), (286, 75640), (305, 70928), (310, 69784), (341, 63440), (403, 53680), (440, 49166), (488, 44330), (496, 43615), (520, 41602), (572, 37820), (610, 35464), (620, 34892), (671, 32240), (682, 31720), (715, 30256), (793, 27280), (806, 26840), (880, 24583), (976, 22165), (1040, 20801), (1144, 18910), (1220, 17732), (1240, 17446), (1342, 16120), (1364, 15860), (1430, 15128), (1586, 13640), (1612, 13420), (1705, 12688), (1891, 11440), (2015, 10736), (2288, 9455), (2440, 8866), (2480, 8723), (2684, 8060), (2728, 7930), (2860, 7564), (3172, 6820), (3224, 6710), (3355, 6448), (3410, 6344), (3782, 5720), (3965, 5456), (4030, 5368), (4433, 4880)]