21661344

素因数分解:

$2^5\times 3^4\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:220

約数の個数: 120

約数和(自身を含む): 65222388

約数和(自身を除く): 43561044

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 61, 72, 81, 96, 108, 122, 137, 144, 162, 183, 216, 244, 274, 288, 324, 366, 411, 432, 488, 548, 549, 648, 732, 822, 864, 976, 1096, 1098, 1233, 1296, 1464, 1644, 1647, 1952, 2192, 2196, 2466, 2592, 2928, 3288, 3294, 3699, 4384, 4392, 4932, 4941, 5856, 6576, 6588, 7398, 8357, 8784, 9864, 9882, 11097, 13152, 13176, 14796, 16714, 17568, 19728, 19764, 22194, 25071, 26352, 29592, 33428, 39456, 39528, 44388, 50142, 52704, 59184, 66856, 75213, 79056, 88776, 100284, 118368, 133712, 150426, 158112, 177552, 200568, 225639, 267424, 300852, 355104, 401136, 451278, 601704, 676917, 802272, 902556, 1203408, 1353834, 1805112, 2406816, 2707668, 3610224, 5415336, 7220448, 10830672, 21661344]

約数ペア:

[(1, 21661344), (2, 10830672), (3, 7220448), (4, 5415336), (6, 3610224), (8, 2707668), (9, 2406816), (12, 1805112), (16, 1353834), (18, 1203408), (24, 902556), (27, 802272), (32, 676917), (36, 601704), (48, 451278), (54, 401136), (61, 355104), (72, 300852), (81, 267424), (96, 225639), (108, 200568), (122, 177552), (137, 158112), (144, 150426), (162, 133712), (183, 118368), (216, 100284), (244, 88776), (274, 79056), (288, 75213), (324, 66856), (366, 59184), (411, 52704), (432, 50142), (488, 44388), (548, 39528), (549, 39456), (648, 33428), (732, 29592), (822, 26352), (864, 25071), (976, 22194), (1096, 19764), (1098, 19728), (1233, 17568), (1296, 16714), (1464, 14796), (1644, 13176), (1647, 13152), (1952, 11097), (2192, 9882), (2196, 9864), (2466, 8784), (2592, 8357), (2928, 7398), (3288, 6588), (3294, 6576), (3699, 5856), (4384, 4941), (4392, 4932)]