17857791

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 31110144

約数和(自身を除く): 13252353

約数列:

[1, 3, 7, 9, 21, 37, 47, 63, 111, 141, 163, 259, 329, 333, 423, 489, 777, 987, 1141, 1467, 1739, 2331, 2961, 3423, 5217, 6031, 7661, 10269, 12173, 15651, 18093, 22983, 36519, 42217, 53627, 54279, 68949, 109557, 126651, 160881, 283457, 379953, 482643, 850371, 1984199, 2551113, 5952597, 17857791]

約数ペア:

[(1, 17857791), (3, 5952597), (7, 2551113), (9, 1984199), (21, 850371), (37, 482643), (47, 379953), (63, 283457), (111, 160881), (141, 126651), (163, 109557), (259, 68949), (329, 54279), (333, 53627), (423, 42217), (489, 36519), (777, 22983), (987, 18093), (1141, 15651), (1467, 12173), (1739, 10269), (2331, 7661), (2961, 6031), (3423, 5217)]