157239719

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 201707520

約数和(自身を除く): 44467801

約数列:

[1, 7, 13, 31, 91, 139, 217, 401, 403, 973, 1807, 2807, 2821, 4309, 5213, 12431, 12649, 30163, 36491, 55739, 56017, 87017, 161603, 390173, 392119, 724607, 1131221, 1727909, 5072249, 12095363, 22462817, 157239719]

約数ペア:

[(1, 157239719), (7, 22462817), (13, 12095363), (31, 5072249), (91, 1727909), (139, 1131221), (217, 724607), (401, 392119), (403, 390173), (973, 161603), (1807, 87017), (2807, 56017), (2821, 55739), (4309, 36491), (5213, 30163), (12431, 12649)]