21509660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{34693}}^1$

素因数の和:34733

約数の個数: 24

約数和(自身を含む): 46628736

約数和(自身を除く): 25119076

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 34693, 69386, 138772, 173465, 346930, 693860, 1075483, 2150966, 4301932, 5377415, 10754830, 21509660]

約数ペア:

[(1, 21509660), (2, 10754830), (4, 5377415), (5, 4301932), (10, 2150966), (20, 1075483), (31, 693860), (62, 346930), (124, 173465), (155, 138772), (310, 69386), (620, 34693)]