18857796

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 45846528

約数和(自身を除く): 26988732

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 163, 186, 311, 326, 372, 489, 622, 652, 933, 978, 1244, 1866, 1956, 3732, 5053, 9641, 10106, 15159, 19282, 20212, 28923, 30318, 38564, 50693, 57846, 60636, 101386, 115692, 152079, 202772, 304158, 608316, 1571483, 3142966, 4714449, 6285932, 9428898, 18857796]

約数ペア:

[(1, 18857796), (2, 9428898), (3, 6285932), (4, 4714449), (6, 3142966), (12, 1571483), (31, 608316), (62, 304158), (93, 202772), (124, 152079), (163, 115692), (186, 101386), (311, 60636), (326, 57846), (372, 50693), (489, 38564), (622, 30318), (652, 28923), (933, 20212), (978, 19282), (1244, 15159), (1866, 10106), (1956, 9641), (3732, 5053)]