66665431

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{397}}^1$

素因数の和:583

約数の個数: 24

約数和(自身を含む): 81669600

約数和(自身を除く): 15004169

約数列:

[1, 7, 23, 49, 149, 161, 397, 1043, 1127, 2779, 3427, 7301, 9131, 19453, 23989, 59153, 63917, 167923, 414071, 447419, 1360519, 2898497, 9523633, 66665431]

約数ペア:

[(1, 66665431), (7, 9523633), (23, 2898497), (49, 1360519), (149, 447419), (161, 414071), (397, 167923), (1043, 63917), (1127, 59153), (2779, 23989), (3427, 19453), (7301, 9131)]