20891392

素因数分解:

$2^8\times {\mathrm{79}}^1\times {\mathrm{1033}}^1$

素因数の和:1128

約数の個数: 36

約数和(自身を含む): 42269920

約数和(自身を除く): 21378528

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 128, 158, 256, 316, 632, 1033, 1264, 2066, 2528, 4132, 5056, 8264, 10112, 16528, 20224, 33056, 66112, 81607, 132224, 163214, 264448, 326428, 652856, 1305712, 2611424, 5222848, 10445696, 20891392]

約数ペア:

[(1, 20891392), (2, 10445696), (4, 5222848), (8, 2611424), (16, 1305712), (32, 652856), (64, 326428), (79, 264448), (128, 163214), (158, 132224), (256, 81607), (316, 66112), (632, 33056), (1033, 20224), (1264, 16528), (2066, 10112), (2528, 8264), (4132, 5056)]