21583640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41507}}^1$

素因数の和:41531

約数の個数: 32

約数和(自身を含む): 52300080

約数和(自身を除く): 30716440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41507, 83014, 166028, 207535, 332056, 415070, 539591, 830140, 1079182, 1660280, 2158364, 2697955, 4316728, 5395910, 10791820, 21583640]

約数ペア:

[(1, 21583640), (2, 10791820), (4, 5395910), (5, 4316728), (8, 2697955), (10, 2158364), (13, 1660280), (20, 1079182), (26, 830140), (40, 539591), (52, 415070), (65, 332056), (104, 207535), (130, 166028), (260, 83014), (520, 41507)]