31181337

素因数分解:

$3^2\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:195

約数の個数: 48

約数和(自身を含む): 52528320

約数和(自身を除く): 21346983

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 121, 137, 171, 209, 363, 411, 627, 1089, 1233, 1331, 1507, 1881, 2299, 2603, 3993, 4521, 6897, 7809, 11979, 13563, 16577, 20691, 23427, 25289, 28633, 49731, 75867, 85899, 149193, 182347, 227601, 257697, 314963, 547041, 944889, 1641123, 2834667, 3464593, 10393779, 31181337]

約数ペア:

[(1, 31181337), (3, 10393779), (9, 3464593), (11, 2834667), (19, 1641123), (33, 944889), (57, 547041), (99, 314963), (121, 257697), (137, 227601), (171, 182347), (209, 149193), (363, 85899), (411, 75867), (627, 49731), (1089, 28633), (1233, 25289), (1331, 23427), (1507, 20691), (1881, 16577), (2299, 13563), (2603, 11979), (3993, 7809), (4521, 6897)]