20537505

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19843}}^1$

素因数の和:19877

約数の個数: 24

約数和(自身を含む): 37147968

約数和(自身を除く): 16610463

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 19843, 59529, 99215, 178587, 297645, 456389, 892935, 1369167, 2281945, 4107501, 6845835, 20537505]

約数ペア:

[(1, 20537505), (3, 6845835), (5, 4107501), (9, 2281945), (15, 1369167), (23, 892935), (45, 456389), (69, 297645), (115, 178587), (207, 99215), (345, 59529), (1035, 19843)]