21036890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 45999360

約数和(自身を除く): 24962470

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 43, 58, 70, 86, 145, 203, 215, 241, 290, 301, 406, 430, 482, 602, 1015, 1205, 1247, 1505, 1687, 2030, 2410, 2494, 3010, 3374, 6235, 6989, 8435, 8729, 10363, 12470, 13978, 16870, 17458, 20726, 34945, 43645, 48923, 51815, 69890, 72541, 87290, 97846, 103630, 145082, 244615, 300527, 362705, 489230, 601054, 725410, 1502635, 2103689, 3005270, 4207378, 10518445, 21036890]

約数ペア:

[(1, 21036890), (2, 10518445), (5, 4207378), (7, 3005270), (10, 2103689), (14, 1502635), (29, 725410), (35, 601054), (43, 489230), (58, 362705), (70, 300527), (86, 244615), (145, 145082), (203, 103630), (215, 97846), (241, 87290), (290, 72541), (301, 69890), (406, 51815), (430, 48923), (482, 43645), (602, 34945), (1015, 20726), (1205, 17458), (1247, 16870), (1505, 13978), (1687, 12470), (2030, 10363), (2410, 8729), (2494, 8435), (3010, 6989), (3374, 6235)]