18804968

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1987}}^1$

素因数の和:2026

約数の個数: 48

約数和(自身を含む): 43656480

約数和(自身を除く): 24851512

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 169, 182, 338, 364, 676, 728, 1183, 1352, 1987, 2366, 3974, 4732, 7948, 9464, 13909, 15896, 25831, 27818, 51662, 55636, 103324, 111272, 180817, 206648, 335803, 361634, 671606, 723268, 1343212, 1446536, 2350621, 2686424, 4701242, 9402484, 18804968]

約数ペア:

[(1, 18804968), (2, 9402484), (4, 4701242), (7, 2686424), (8, 2350621), (13, 1446536), (14, 1343212), (26, 723268), (28, 671606), (52, 361634), (56, 335803), (91, 206648), (104, 180817), (169, 111272), (182, 103324), (338, 55636), (364, 51662), (676, 27818), (728, 25831), (1183, 15896), (1352, 13909), (1987, 9464), (2366, 7948), (3974, 4732)]