20171805645

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2857}}^1\times {\mathrm{16231}}^1$

素因数の和:19125

約数の個数: 32

約数和(自身を含む): 33401560320

約数和(自身を除く): 13229754675

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 2857, 8571, 14285, 16231, 42855, 48693, 81155, 82853, 243465, 248559, 414265, 470699, 1242795, 1412097, 2353495, 7060485, 46371967, 139115901, 231859835, 695579505, 1344787043, 4034361129, 6723935215, 20171805645]

約数ペア:

[(1, 20171805645), (3, 6723935215), (5, 4034361129), (15, 1344787043), (29, 695579505), (87, 231859835), (145, 139115901), (435, 46371967), (2857, 7060485), (8571, 2353495), (14285, 1412097), (16231, 1242795), (42855, 470699), (48693, 414265), (81155, 248559), (82853, 243465)]