31559997

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 49711104

約数和(自身を除く): 18151107

約数列:

[1, 3, 7, 21, 61, 71, 183, 213, 347, 427, 497, 1041, 1281, 1491, 2429, 4331, 7287, 12993, 21167, 24637, 30317, 63501, 73911, 90951, 148169, 172459, 444507, 517377, 1502857, 4508571, 10519999, 31559997]

約数ペア:

[(1, 31559997), (3, 10519999), (7, 4508571), (21, 1502857), (61, 517377), (71, 444507), (183, 172459), (213, 148169), (347, 90951), (427, 73911), (497, 63501), (1041, 30317), (1281, 24637), (1491, 21167), (2429, 12993), (4331, 7287)]