20321834

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2054

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 15966166

約数列:

[1, 2, 13, 17, 23, 26, 34, 46, 221, 299, 391, 442, 598, 782, 1999, 3998, 5083, 10166, 25987, 33983, 45977, 51974, 67966, 91954, 441779, 597701, 781609, 883558, 1195402, 1563218, 10160917, 20321834]

約数ペア:

[(1, 20321834), (2, 10160917), (13, 1563218), (17, 1195402), (23, 883558), (26, 781609), (34, 597701), (46, 441779), (221, 91954), (299, 67966), (391, 51974), (442, 45977), (598, 33983), (782, 25987), (1999, 10166), (3998, 5083)]