21371916100

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{4032437}}^1$

素因数の和:4032504

約数の個数: 36

約数和(自身を含む): 47252108484

約数和(自身を除く): 25880192384

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 212, 265, 530, 1060, 1325, 2650, 5300, 4032437, 8064874, 16129748, 20162185, 40324370, 80648740, 100810925, 201621850, 213719161, 403243700, 427438322, 854876644, 1068595805, 2137191610, 4274383220, 5342979025, 10685958050, 21371916100]

約数ペア:

[(1, 21371916100), (2, 10685958050), (4, 5342979025), (5, 4274383220), (10, 2137191610), (20, 1068595805), (25, 854876644), (50, 427438322), (53, 403243700), (100, 213719161), (106, 201621850), (212, 100810925), (265, 80648740), (530, 40324370), (1060, 20162185), (1325, 16129748), (2650, 8064874), (5300, 4032437)]