18990816

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{15217}}^1$

素因数の和:15243

約数の個数: 48

約数和(自身を含む): 53689104

約数和(自身を除く): 34698288

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 15217, 30434, 45651, 60868, 91302, 121736, 182604, 197821, 243472, 365208, 395642, 486944, 593463, 730416, 791284, 1186926, 1460832, 1582568, 2373852, 3165136, 4747704, 6330272, 9495408, 18990816]

約数ペア:

[(1, 18990816), (2, 9495408), (3, 6330272), (4, 4747704), (6, 3165136), (8, 2373852), (12, 1582568), (13, 1460832), (16, 1186926), (24, 791284), (26, 730416), (32, 593463), (39, 486944), (48, 395642), (52, 365208), (78, 243472), (96, 197821), (104, 182604), (156, 121736), (208, 91302), (312, 60868), (416, 45651), (624, 30434), (1248, 15217)]