20197458

素因数分解:

$2^1\times 3^3\times {\mathrm{151}}^1\times {\mathrm{2477}}^1$

素因数の和:2639

約数の個数: 32

約数和(自身を含む): 45198720

約数和(自身を除く): 25001262

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 151, 302, 453, 906, 1359, 2477, 2718, 4077, 4954, 7431, 8154, 14862, 22293, 44586, 66879, 133758, 374027, 748054, 1122081, 2244162, 3366243, 6732486, 10098729, 20197458]

約数ペア:

[(1, 20197458), (2, 10098729), (3, 6732486), (6, 3366243), (9, 2244162), (18, 1122081), (27, 748054), (54, 374027), (151, 133758), (302, 66879), (453, 44586), (906, 22293), (1359, 14862), (2477, 8154), (2718, 7431), (4077, 4954)]