18712251

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{1427}}^1$

素因数の和:1511

約数の個数: 24

約数和(自身を含む): 28514304

約数和(自身を除く): 9802053

約数列:

[1, 3, 9, 31, 47, 93, 141, 279, 423, 1427, 1457, 4281, 4371, 12843, 13113, 44237, 67069, 132711, 201207, 398133, 603621, 2079139, 6237417, 18712251]

約数ペア:

[(1, 18712251), (3, 6237417), (9, 2079139), (31, 603621), (47, 398133), (93, 201207), (141, 132711), (279, 67069), (423, 44237), (1427, 13113), (1457, 12843), (4281, 4371)]