19983390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2213}}^1$

素因数の和:2273

約数の個数: 64

約数和(自身を含む): 56111616

約数和(自身を除く): 36128226

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 43, 70, 86, 105, 129, 210, 215, 258, 301, 430, 602, 645, 903, 1290, 1505, 1806, 2213, 3010, 4426, 4515, 6639, 9030, 11065, 13278, 15491, 22130, 30982, 33195, 46473, 66390, 77455, 92946, 95159, 154910, 190318, 232365, 285477, 464730, 475795, 570954, 666113, 951590, 1332226, 1427385, 1998339, 2854770, 3330565, 3996678, 6661130, 9991695, 19983390]

約数ペア:

[(1, 19983390), (2, 9991695), (3, 6661130), (5, 3996678), (6, 3330565), (7, 2854770), (10, 1998339), (14, 1427385), (15, 1332226), (21, 951590), (30, 666113), (35, 570954), (42, 475795), (43, 464730), (70, 285477), (86, 232365), (105, 190318), (129, 154910), (210, 95159), (215, 92946), (258, 77455), (301, 66390), (430, 46473), (602, 33195), (645, 30982), (903, 22130), (1290, 15491), (1505, 13278), (1806, 11065), (2213, 9030), (3010, 6639), (4426, 4515)]