21321240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{177677}}^1$

素因数の和:177691

約数の個数: 32

約数和(自身を含む): 63964080

約数和(自身を除く): 42642840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 177677, 355354, 533031, 710708, 888385, 1066062, 1421416, 1776770, 2132124, 2665155, 3553540, 4264248, 5330310, 7107080, 10660620, 21321240]

約数ペア:

[(1, 21321240), (2, 10660620), (3, 7107080), (4, 5330310), (5, 4264248), (6, 3553540), (8, 2665155), (10, 2132124), (12, 1776770), (15, 1421416), (20, 1066062), (24, 888385), (30, 710708), (40, 533031), (60, 355354), (120, 177677)]