21228876688

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{277}}^1\times {\mathrm{129457}}^1$

素因数の和:129779

約数の個数: 40

約数和(自身を含む): 42395423672

約数和(自身を除く): 21166546984

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 277, 296, 554, 592, 1108, 2216, 4432, 10249, 20498, 40996, 81992, 129457, 163984, 258914, 517828, 1035656, 2071312, 4789909, 9579818, 19159636, 35859589, 38319272, 71719178, 76638544, 143438356, 286876712, 573753424, 1326804793, 2653609586, 5307219172, 10614438344, 21228876688]

約数ペア:

[(1, 21228876688), (2, 10614438344), (4, 5307219172), (8, 2653609586), (16, 1326804793), (37, 573753424), (74, 286876712), (148, 143438356), (277, 76638544), (296, 71719178), (554, 38319272), (592, 35859589), (1108, 19159636), (2216, 9579818), (4432, 4789909), (10249, 2071312), (20498, 1035656), (40996, 517828), (81992, 258914), (129457, 163984)]