18997958

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{641}}^1$

素因数の和:752

約数の個数: 32

約数和(自身を含む): 34205760

約数和(自身を除く): 15207802

約数列:

[1, 2, 7, 14, 29, 58, 73, 146, 203, 406, 511, 641, 1022, 1282, 2117, 4234, 4487, 8974, 14819, 18589, 29638, 37178, 46793, 93586, 130123, 260246, 327551, 655102, 1356997, 2713994, 9498979, 18997958]

約数ペア:

[(1, 18997958), (2, 9498979), (7, 2713994), (14, 1356997), (29, 655102), (58, 327551), (73, 260246), (146, 130123), (203, 93586), (406, 46793), (511, 37178), (641, 29638), (1022, 18589), (1282, 14819), (2117, 8974), (4234, 4487)]