399568309

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{21929}}^1$

素因数の和:22092

約数の個数: 16

約数和(自身を含む): 484214400

約数和(自身を除く): 84646091

約数列:

[1, 7, 19, 133, 137, 959, 2603, 18221, 21929, 153503, 416651, 2916557, 3004273, 21029911, 57081187, 399568309]

約数ペア:

[(1, 399568309), (7, 57081187), (19, 21029911), (133, 3004273), (137, 2916557), (959, 416651), (2603, 153503), (18221, 21929)]