20704742

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:296

約数の個数: 32

約数和(自身を含む): 34149600

約数和(自身を除く): 13444858

約数列:

[1, 2, 17, 34, 61, 67, 122, 134, 149, 298, 1037, 1139, 2074, 2278, 2533, 4087, 5066, 8174, 9089, 9983, 18178, 19966, 69479, 138958, 154513, 169711, 309026, 339422, 608963, 1217926, 10352371, 20704742]

約数ペア:

[(1, 20704742), (2, 10352371), (17, 1217926), (34, 608963), (61, 339422), (67, 309026), (122, 169711), (134, 154513), (149, 138958), (298, 69479), (1037, 19966), (1139, 18178), (2074, 9983), (2278, 9089), (2533, 8174), (4087, 5066)]