21009816

素因数分解:

$2^3\times 3^2\times {\mathrm{31}}^1\times {\mathrm{9413}}^1$

素因数の和:9456

約数の個数: 48

約数和(自身を含む): 58743360

約数和(自身を除く): 37733544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 31, 36, 62, 72, 93, 124, 186, 248, 279, 372, 558, 744, 1116, 2232, 9413, 18826, 28239, 37652, 56478, 75304, 84717, 112956, 169434, 225912, 291803, 338868, 583606, 677736, 875409, 1167212, 1750818, 2334424, 2626227, 3501636, 5252454, 7003272, 10504908, 21009816]

約数ペア:

[(1, 21009816), (2, 10504908), (3, 7003272), (4, 5252454), (6, 3501636), (8, 2626227), (9, 2334424), (12, 1750818), (18, 1167212), (24, 875409), (31, 677736), (36, 583606), (62, 338868), (72, 291803), (93, 225912), (124, 169434), (186, 112956), (248, 84717), (279, 75304), (372, 56478), (558, 37652), (744, 28239), (1116, 18826), (2232, 9413)]