21609290

素因数分解:

$2^1\times 5^1\times {\mathrm{619}}^1\times {\mathrm{3491}}^1$

素因数の和:4117

約数の個数: 16

約数和(自身を含む): 38970720

約数和(自身を除く): 17361430

約数列:

[1, 2, 5, 10, 619, 1238, 3095, 3491, 6190, 6982, 17455, 34910, 2160929, 4321858, 10804645, 21609290]

約数ペア:

[(1, 21609290), (2, 10804645), (5, 4321858), (10, 2160929), (619, 34910), (1238, 17455), (3095, 6982), (3491, 6190)]