87388287

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{557}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 138276864

約数和(自身を除く): 50888577

約数列:

[1, 3, 7, 21, 31, 93, 217, 241, 557, 651, 723, 1671, 1687, 3899, 5061, 7471, 11697, 17267, 22413, 51801, 52297, 120869, 134237, 156891, 362607, 402711, 939659, 2818977, 4161347, 12484041, 29129429, 87388287]

約数ペア:

[(1, 87388287), (3, 29129429), (7, 12484041), (21, 4161347), (31, 2818977), (93, 939659), (217, 402711), (241, 362607), (557, 156891), (651, 134237), (723, 120869), (1671, 52297), (1687, 51801), (3899, 22413), (5061, 17267), (7471, 11697)]