217425345

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{1511}}^1$

素因数の和:1753

約数の個数: 32

約数和(自身を含む): 356638464

約数和(自身を除く): 139213119

約数列:

[1, 3, 5, 15, 53, 159, 181, 265, 543, 795, 905, 1511, 2715, 4533, 7555, 9593, 22665, 28779, 47965, 80083, 143895, 240249, 273491, 400415, 820473, 1201245, 1367455, 4102365, 14495023, 43485069, 72475115, 217425345]

約数ペア:

[(1, 217425345), (3, 72475115), (5, 43485069), (15, 14495023), (53, 4102365), (159, 1367455), (181, 1201245), (265, 820473), (543, 400415), (795, 273491), (905, 240249), (1511, 143895), (2715, 80083), (4533, 47965), (7555, 28779), (9593, 22665)]