20666556

素因数分解:

$2^2\times 3^3\times {\mathrm{61}}^1\times {\mathrm{3137}}^1$

素因数の和:3211

約数の個数: 48

約数和(自身を含む): 54475680

約数和(自身を除く): 33809124

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 61, 108, 122, 183, 244, 366, 549, 732, 1098, 1647, 2196, 3137, 3294, 6274, 6588, 9411, 12548, 18822, 28233, 37644, 56466, 84699, 112932, 169398, 191357, 338796, 382714, 574071, 765428, 1148142, 1722213, 2296284, 3444426, 5166639, 6888852, 10333278, 20666556]

約数ペア:

[(1, 20666556), (2, 10333278), (3, 6888852), (4, 5166639), (6, 3444426), (9, 2296284), (12, 1722213), (18, 1148142), (27, 765428), (36, 574071), (54, 382714), (61, 338796), (108, 191357), (122, 169398), (183, 112932), (244, 84699), (366, 56466), (549, 37644), (732, 28233), (1098, 18822), (1647, 12548), (2196, 9411), (3137, 6588), (3294, 6274)]