19464328

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{887}}^1$

素因数の和:1117

約数の個数: 32

約数和(自身を含む): 39533760

約数和(自身を除く): 20069432

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 211, 422, 844, 887, 1688, 1774, 2743, 3548, 5486, 7096, 10972, 11531, 21944, 23062, 46124, 92248, 187157, 374314, 748628, 1497256, 2433041, 4866082, 9732164, 19464328]

約数ペア:

[(1, 19464328), (2, 9732164), (4, 4866082), (8, 2433041), (13, 1497256), (26, 748628), (52, 374314), (104, 187157), (211, 92248), (422, 46124), (844, 23062), (887, 21944), (1688, 11531), (1774, 10972), (2743, 7096), (3548, 5486)]