21265192

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2801}}^1$

素因数の和:2893

約数の個数: 32

約数和(自身を含む): 43543080

約数和(自身を除く): 22277888

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 146, 292, 584, 949, 1898, 2801, 3796, 5602, 7592, 11204, 22408, 36413, 72826, 145652, 204473, 291304, 408946, 817892, 1635784, 2658149, 5316298, 10632596, 21265192]

約数ペア:

[(1, 21265192), (2, 10632596), (4, 5316298), (8, 2658149), (13, 1635784), (26, 817892), (52, 408946), (73, 291304), (104, 204473), (146, 145652), (292, 72826), (584, 36413), (949, 22408), (1898, 11204), (2801, 7592), (3796, 5602)]