21245664

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:125

約数の個数: 144

約数和(自身を含む): 64350720

約数和(自身を除く): 43105056

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 31, 32, 33, 44, 48, 59, 62, 66, 88, 93, 96, 118, 121, 124, 132, 176, 177, 186, 236, 242, 248, 264, 341, 352, 354, 363, 372, 472, 484, 496, 528, 649, 682, 708, 726, 744, 944, 968, 992, 1023, 1056, 1298, 1364, 1416, 1452, 1488, 1829, 1888, 1936, 1947, 2046, 2596, 2728, 2832, 2904, 2976, 3658, 3751, 3872, 3894, 4092, 5192, 5456, 5487, 5664, 5808, 7139, 7316, 7502, 7788, 8184, 10384, 10912, 10974, 11253, 11616, 14278, 14632, 15004, 15576, 16368, 20119, 20768, 21417, 21948, 22506, 28556, 29264, 30008, 31152, 32736, 40238, 42834, 43896, 45012, 57112, 58528, 60016, 60357, 62304, 80476, 85668, 87792, 90024, 114224, 120032, 120714, 160952, 171336, 175584, 180048, 221309, 228448, 241428, 321904, 342672, 360096, 442618, 482856, 643808, 663927, 685344, 885236, 965712, 1327854, 1770472, 1931424, 2655708, 3540944, 5311416, 7081888, 10622832, 21245664]

約数ペア:

[(1, 21245664), (2, 10622832), (3, 7081888), (4, 5311416), (6, 3540944), (8, 2655708), (11, 1931424), (12, 1770472), (16, 1327854), (22, 965712), (24, 885236), (31, 685344), (32, 663927), (33, 643808), (44, 482856), (48, 442618), (59, 360096), (62, 342672), (66, 321904), (88, 241428), (93, 228448), (96, 221309), (118, 180048), (121, 175584), (124, 171336), (132, 160952), (176, 120714), (177, 120032), (186, 114224), (236, 90024), (242, 87792), (248, 85668), (264, 80476), (341, 62304), (352, 60357), (354, 60016), (363, 58528), (372, 57112), (472, 45012), (484, 43896), (496, 42834), (528, 40238), (649, 32736), (682, 31152), (708, 30008), (726, 29264), (744, 28556), (944, 22506), (968, 21948), (992, 21417), (1023, 20768), (1056, 20119), (1298, 16368), (1364, 15576), (1416, 15004), (1452, 14632), (1488, 14278), (1829, 11616), (1888, 11253), (1936, 10974), (1947, 10912), (2046, 10384), (2596, 8184), (2728, 7788), (2832, 7502), (2904, 7316), (2976, 7139), (3658, 5808), (3751, 5664), (3872, 5487), (3894, 5456), (4092, 5192)]