211232915

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 268849152

約数和(自身を除く): 57616237

約数列:

[1, 5, 31, 101, 103, 131, 155, 505, 515, 655, 3131, 3193, 4061, 10403, 13231, 13493, 15655, 15965, 20305, 52015, 66155, 67465, 322493, 410161, 418283, 1362793, 1612465, 2050805, 2091415, 6813965, 42246583, 211232915]

約数ペア:

[(1, 211232915), (5, 42246583), (31, 6813965), (101, 2091415), (103, 2050805), (131, 1612465), (155, 1362793), (505, 418283), (515, 410161), (655, 322493), (3131, 67465), (3193, 66155), (4061, 52015), (10403, 20305), (13231, 15965), (13493, 15655)]