139251

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:378

約数の個数: 16

約数和(自身を含む): 224000

約数和(自身を除く): 84749

約数列:

[1, 3, 7, 19, 21, 57, 133, 349, 399, 1047, 2443, 6631, 7329, 19893, 46417, 139251]

約数ペア:

[(1, 139251), (3, 46417), (7, 19893), (19, 7329), (21, 6631), (57, 2443), (133, 1047), (349, 399)]