21125818

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{48677}}^1$

素因数の和:48717

約数の個数: 16

約数和(自身を含む): 37384704

約数和(自身を除く): 16258886

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 48677, 97354, 340739, 681478, 1508987, 3017974, 10562909, 21125818]

約数ペア:

[(1, 21125818), (2, 10562909), (7, 3017974), (14, 1508987), (31, 681478), (62, 340739), (217, 97354), (434, 48677)]