27789909

素因数分解:

$3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{2393}}^1$

素因数の和:2489

約数の個数: 24

約数和(自身を含む): 43666560

約数和(自身を除く): 15876651

約数列:

[1, 3, 7, 21, 49, 79, 147, 237, 553, 1659, 2393, 3871, 7179, 11613, 16751, 50253, 117257, 189047, 351771, 567141, 1323329, 3969987, 9263303, 27789909]

約数ペア:

[(1, 27789909), (3, 9263303), (7, 3969987), (21, 1323329), (49, 567141), (79, 351771), (147, 189047), (237, 117257), (553, 50253), (1659, 16751), (2393, 11613), (3871, 7179)]