217628547

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 306028800

約数和(自身を除く): 88400253

約数列:

[1, 3, 43, 53, 129, 139, 159, 229, 417, 687, 2279, 5977, 6837, 7367, 9847, 12137, 17931, 22101, 29541, 31831, 36411, 95493, 316781, 521891, 950343, 1368733, 1565673, 1687043, 4106199, 5061129, 72542849, 217628547]

約数ペア:

[(1, 217628547), (3, 72542849), (43, 5061129), (53, 4106199), (129, 1687043), (139, 1565673), (159, 1368733), (229, 950343), (417, 521891), (687, 316781), (2279, 95493), (5977, 36411), (6837, 31831), (7367, 29541), (9847, 22101), (12137, 17931)]