20717406

素因数分解:

$2^1\times 3^2\times {\mathrm{157}}^1\times {\mathrm{7331}}^1$

素因数の和:7496

約数の個数: 24

約数和(自身を含む): 45179784

約数和(自身を除く): 24462378

約数列:

[1, 2, 3, 6, 9, 18, 157, 314, 471, 942, 1413, 2826, 7331, 14662, 21993, 43986, 65979, 131958, 1150967, 2301934, 3452901, 6905802, 10358703, 20717406]

約数ペア:

[(1, 20717406), (2, 10358703), (3, 6905802), (6, 3452901), (9, 2301934), (18, 1150967), (157, 131958), (314, 65979), (471, 43986), (942, 21993), (1413, 14662), (2826, 7331)]