19801688

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{827}}^1$

素因数の和:947

約数の個数: 32

約数和(自身を含む): 38601360

約数和(自身を除く): 18799672

約数列:

[1, 2, 4, 8, 41, 73, 82, 146, 164, 292, 328, 584, 827, 1654, 2993, 3308, 5986, 6616, 11972, 23944, 33907, 60371, 67814, 120742, 135628, 241484, 271256, 482968, 2475211, 4950422, 9900844, 19801688]

約数ペア:

[(1, 19801688), (2, 9900844), (4, 4950422), (8, 2475211), (41, 482968), (73, 271256), (82, 241484), (146, 135628), (164, 120742), (292, 67814), (328, 60371), (584, 33907), (827, 23944), (1654, 11972), (2993, 6616), (3308, 5986)]