20019616

素因数分解:

$2^5\times {\mathrm{19}}^2\times {\mathrm{1733}}^1$

素因数の和:1781

約数の個数: 36

約数和(自身を含む): 41621202

約数和(自身を除く): 21601586

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 361, 608, 722, 1444, 1733, 2888, 3466, 5776, 6932, 11552, 13864, 27728, 32927, 55456, 65854, 131708, 263416, 526832, 625613, 1053664, 1251226, 2502452, 5004904, 10009808, 20019616]

約数ペア:

[(1, 20019616), (2, 10009808), (4, 5004904), (8, 2502452), (16, 1251226), (19, 1053664), (32, 625613), (38, 526832), (76, 263416), (152, 131708), (304, 65854), (361, 55456), (608, 32927), (722, 27728), (1444, 13864), (1733, 11552), (2888, 6932), (3466, 5776)]