31621515

素因数分解:

$3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 51856896

約数和(自身を除く): 20235381

約数列:

[1, 3, 5, 15, 97, 103, 211, 291, 309, 485, 515, 633, 1055, 1455, 1545, 3165, 9991, 20467, 21733, 29973, 49955, 61401, 65199, 102335, 108665, 149865, 307005, 325995, 2108101, 6324303, 10540505, 31621515]

約数ペア:

[(1, 31621515), (3, 10540505), (5, 6324303), (15, 2108101), (97, 325995), (103, 307005), (211, 149865), (291, 108665), (309, 102335), (485, 65199), (515, 61401), (633, 49955), (1055, 29973), (1455, 21733), (1545, 20467), (3165, 9991)]