21718389

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{631}}^1$

素因数の和:801

約数の個数: 32

約数和(自身を含む): 36403200

約数和(自身を除く): 14684811

約数列:

[1, 3, 7, 11, 21, 33, 77, 149, 231, 447, 631, 1043, 1639, 1893, 3129, 4417, 4917, 6941, 11473, 13251, 20823, 34419, 48587, 94019, 145761, 282057, 658133, 1034209, 1974399, 3102627, 7239463, 21718389]

約数ペア:

[(1, 21718389), (3, 7239463), (7, 3102627), (11, 1974399), (21, 1034209), (33, 658133), (77, 282057), (149, 145761), (231, 94019), (447, 48587), (631, 34419), (1043, 20823), (1639, 13251), (1893, 11473), (3129, 6941), (4417, 4917)]