31261221

素因数分解:

$3^5\times {\mathrm{103}}^1\times {\mathrm{1249}}^1$

素因数の和:1367

約数の個数: 24

約数和(自身を含む): 47320000

約数和(自身を除く): 16058779

約数列:

[1, 3, 9, 27, 81, 103, 243, 309, 927, 1249, 2781, 3747, 8343, 11241, 25029, 33723, 101169, 128647, 303507, 385941, 1157823, 3473469, 10420407, 31261221]

約数ペア:

[(1, 31261221), (3, 10420407), (9, 3473469), (27, 1157823), (81, 385941), (103, 303507), (243, 128647), (309, 101169), (927, 33723), (1249, 25029), (2781, 11241), (3747, 8343)]