21260208

素因数分解:

$2^4\times 3^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:262

約数の個数: 80

約数和(自身を含む): 57290976

約数和(自身を除く): 36030768

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 53, 61, 106, 122, 137, 159, 183, 212, 244, 274, 318, 366, 411, 424, 488, 548, 636, 732, 822, 848, 976, 1096, 1272, 1464, 1644, 2192, 2544, 2928, 3233, 3288, 6466, 6576, 7261, 8357, 9699, 12932, 14522, 16714, 19398, 21783, 25071, 25864, 29044, 33428, 38796, 43566, 50142, 51728, 58088, 66856, 77592, 87132, 100284, 116176, 133712, 155184, 174264, 200568, 348528, 401136, 442921, 885842, 1328763, 1771684, 2657526, 3543368, 5315052, 7086736, 10630104, 21260208]

約数ペア:

[(1, 21260208), (2, 10630104), (3, 7086736), (4, 5315052), (6, 3543368), (8, 2657526), (12, 1771684), (16, 1328763), (24, 885842), (48, 442921), (53, 401136), (61, 348528), (106, 200568), (122, 174264), (137, 155184), (159, 133712), (183, 116176), (212, 100284), (244, 87132), (274, 77592), (318, 66856), (366, 58088), (411, 51728), (424, 50142), (488, 43566), (548, 38796), (636, 33428), (732, 29044), (822, 25864), (848, 25071), (976, 21783), (1096, 19398), (1272, 16714), (1464, 14522), (1644, 12932), (2192, 9699), (2544, 8357), (2928, 7261), (3233, 6576), (3288, 6466)]