21000453597

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{730781}}^1$

素因数の和:730921

約数の個数: 24

約数和(自身を含む): 31616552448

約数和(自身を除く): 10616098851

約数列:

[1, 3, 9, 31, 93, 103, 279, 309, 927, 3193, 9579, 28737, 730781, 2192343, 6577029, 22654211, 67962633, 75270443, 203887899, 225811329, 677433987, 2333383733, 7000151199, 21000453597]

約数ペア:

[(1, 21000453597), (3, 7000151199), (9, 2333383733), (31, 677433987), (93, 225811329), (103, 203887899), (279, 75270443), (309, 67962633), (927, 22654211), (3193, 6577029), (9579, 2192343), (28737, 730781)]