21245336

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{5197}}^1$

素因数の和:5283

約数の個数: 32

約数和(自身を含む): 46158240

約数和(自身を除く): 24912904

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 511, 584, 1022, 2044, 4088, 5197, 10394, 20788, 36379, 41576, 72758, 145516, 291032, 379381, 758762, 1517524, 2655667, 3035048, 5311334, 10622668, 21245336]

約数ペア:

[(1, 21245336), (2, 10622668), (4, 5311334), (7, 3035048), (8, 2655667), (14, 1517524), (28, 758762), (56, 379381), (73, 291032), (146, 145516), (292, 72758), (511, 41576), (584, 36379), (1022, 20788), (2044, 10394), (4088, 5197)]