18874245

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{641}}^1$

素因数の和:813

約数の個数: 32

約数和(自身を含む): 32788224

約数和(自身を除く): 13913979

約数列:

[1, 3, 5, 13, 15, 39, 65, 151, 195, 453, 641, 755, 1923, 1963, 2265, 3205, 5889, 8333, 9615, 9815, 24999, 29445, 41665, 96791, 124995, 290373, 483955, 1258283, 1451865, 3774849, 6291415, 18874245]

約数ペア:

[(1, 18874245), (3, 6291415), (5, 3774849), (13, 1451865), (15, 1258283), (39, 483955), (65, 290373), (151, 124995), (195, 96791), (453, 41665), (641, 29445), (755, 24999), (1923, 9815), (1963, 9615), (2265, 8333), (3205, 5889)]