21777080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41879}}^1$

素因数の和:41903

約数の個数: 32

約数和(自身を含む): 52768800

約数和(自身を除く): 30991720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41879, 83758, 167516, 209395, 335032, 418790, 544427, 837580, 1088854, 1675160, 2177708, 2722135, 4355416, 5444270, 10888540, 21777080]

約数ペア:

[(1, 21777080), (2, 10888540), (4, 5444270), (5, 4355416), (8, 2722135), (10, 2177708), (13, 1675160), (20, 1088854), (26, 837580), (40, 544427), (52, 418790), (65, 335032), (104, 209395), (130, 167516), (260, 83758), (520, 41879)]