21395304

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{42451}}^1$

素因数の和:42470

約数の個数: 48

約数和(自身を含む): 66225120

約数和(自身を除く): 44829816

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 42451, 84902, 127353, 169804, 254706, 297157, 339608, 382059, 509412, 594314, 764118, 891471, 1018824, 1188628, 1528236, 1782942, 2377256, 2674413, 3056472, 3565884, 5348826, 7131768, 10697652, 21395304]

約数ペア:

[(1, 21395304), (2, 10697652), (3, 7131768), (4, 5348826), (6, 3565884), (7, 3056472), (8, 2674413), (9, 2377256), (12, 1782942), (14, 1528236), (18, 1188628), (21, 1018824), (24, 891471), (28, 764118), (36, 594314), (42, 509412), (56, 382059), (63, 339608), (72, 297157), (84, 254706), (126, 169804), (168, 127353), (252, 84902), (504, 42451)]