21403045976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{570079}}^1$

素因数の和:570136

約数の個数: 48

約数和(自身を含む): 45612100800

約数和(自身を除く): 24209054824

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 361, 494, 722, 988, 1444, 1976, 2888, 4693, 9386, 18772, 37544, 570079, 1140158, 2280316, 4560632, 7411027, 10831501, 14822054, 21663002, 29644108, 43326004, 59288216, 86652008, 140809513, 205798519, 281619026, 411597038, 563238052, 823194076, 1126476104, 1646388152, 2675380747, 5350761494, 10701522988, 21403045976]

約数ペア:

[(1, 21403045976), (2, 10701522988), (4, 5350761494), (8, 2675380747), (13, 1646388152), (19, 1126476104), (26, 823194076), (38, 563238052), (52, 411597038), (76, 281619026), (104, 205798519), (152, 140809513), (247, 86652008), (361, 59288216), (494, 43326004), (722, 29644108), (988, 21663002), (1444, 14822054), (1976, 10831501), (2888, 7411027), (4693, 4560632), (9386, 2280316), (18772, 1140158), (37544, 570079)]