21520020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{358667}}^1$

素因数の和:358679

約数の個数: 24

約数和(自身を含む): 60256224

約数和(自身を除く): 38736204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 358667, 717334, 1076001, 1434668, 1793335, 2152002, 3586670, 4304004, 5380005, 7173340, 10760010, 21520020]

約数ペア:

[(1, 21520020), (2, 10760010), (3, 7173340), (4, 5380005), (5, 4304004), (6, 3586670), (10, 2152002), (12, 1793335), (15, 1434668), (20, 1076001), (30, 717334), (60, 358667)]