19963376

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{677}}^1$

素因数の和:801

約数の個数: 40

約数和(自身を含む): 41195280

約数和(自身を除く): 21231904

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 97, 152, 194, 304, 388, 677, 776, 1354, 1552, 1843, 2708, 3686, 5416, 7372, 10832, 12863, 14744, 25726, 29488, 51452, 65669, 102904, 131338, 205808, 262676, 525352, 1050704, 1247711, 2495422, 4990844, 9981688, 19963376]

約数ペア:

[(1, 19963376), (2, 9981688), (4, 4990844), (8, 2495422), (16, 1247711), (19, 1050704), (38, 525352), (76, 262676), (97, 205808), (152, 131338), (194, 102904), (304, 65669), (388, 51452), (677, 29488), (776, 25726), (1354, 14744), (1552, 12863), (1843, 10832), (2708, 7372), (3686, 5416)]