1649259

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:195

約数の個数: 24

約数和(自身を含む): 2527200

約数和(自身を除く): 877941

約数列:

[1, 3, 9, 29, 71, 87, 89, 213, 261, 267, 639, 801, 2059, 2581, 6177, 6319, 7743, 18531, 18957, 23229, 56871, 183251, 549753, 1649259]

約数ペア:

[(1, 1649259), (3, 549753), (9, 183251), (29, 56871), (71, 23229), (87, 18957), (89, 18531), (213, 7743), (261, 6319), (267, 6177), (639, 2581), (801, 2059)]