31975119

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 53913600

約数和(自身を除く): 21938481

約数列:

[1, 3, 9, 11, 19, 33, 57, 89, 99, 171, 191, 209, 267, 573, 627, 801, 979, 1691, 1719, 1881, 2101, 2937, 3629, 5073, 6303, 8811, 10887, 15219, 16999, 18601, 18909, 32661, 39919, 50997, 55803, 119757, 152991, 167409, 186989, 322981, 359271, 560967, 968943, 1682901, 2906829, 3552791, 10658373, 31975119]

約数ペア:

[(1, 31975119), (3, 10658373), (9, 3552791), (11, 2906829), (19, 1682901), (33, 968943), (57, 560967), (89, 359271), (99, 322981), (171, 186989), (191, 167409), (209, 152991), (267, 119757), (573, 55803), (627, 50997), (801, 39919), (979, 32661), (1691, 18909), (1719, 18601), (1881, 16999), (2101, 15219), (2937, 10887), (3629, 8811), (5073, 6303)]