398097

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:173

約数の個数: 24

約数和(自身を含む): 673920

約数和(自身を除く): 275823

約数列:

[1, 3, 7, 9, 21, 63, 71, 89, 213, 267, 497, 623, 639, 801, 1491, 1869, 4473, 5607, 6319, 18957, 44233, 56871, 132699, 398097]

約数ペア:

[(1, 398097), (3, 132699), (7, 56871), (9, 44233), (21, 18957), (63, 6319), (71, 5607), (89, 4473), (213, 1869), (267, 1491), (497, 801), (623, 639)]