20953504

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1$

素因数の和:294

約数の個数: 96

約数和(自身を含む): 51226560

約数和(自身を除く): 30273056

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 26, 32, 38, 44, 52, 76, 88, 104, 143, 152, 176, 208, 209, 241, 247, 286, 304, 352, 416, 418, 482, 494, 572, 608, 836, 964, 988, 1144, 1672, 1928, 1976, 2288, 2651, 2717, 3133, 3344, 3856, 3952, 4576, 4579, 5302, 5434, 6266, 6688, 7712, 7904, 9158, 10604, 10868, 12532, 18316, 21208, 21736, 25064, 34463, 36632, 42416, 43472, 50128, 50369, 59527, 68926, 73264, 84832, 86944, 100256, 100738, 119054, 137852, 146528, 201476, 238108, 275704, 402952, 476216, 551408, 654797, 805904, 952432, 1102816, 1309594, 1611808, 1904864, 2619188, 5238376, 10476752, 20953504]

約数ペア:

[(1, 20953504), (2, 10476752), (4, 5238376), (8, 2619188), (11, 1904864), (13, 1611808), (16, 1309594), (19, 1102816), (22, 952432), (26, 805904), (32, 654797), (38, 551408), (44, 476216), (52, 402952), (76, 275704), (88, 238108), (104, 201476), (143, 146528), (152, 137852), (176, 119054), (208, 100738), (209, 100256), (241, 86944), (247, 84832), (286, 73264), (304, 68926), (352, 59527), (416, 50369), (418, 50128), (482, 43472), (494, 42416), (572, 36632), (608, 34463), (836, 25064), (964, 21736), (988, 21208), (1144, 18316), (1672, 12532), (1928, 10868), (1976, 10604), (2288, 9158), (2651, 7904), (2717, 7712), (3133, 6688), (3344, 6266), (3856, 5434), (3952, 5302), (4576, 4579)]