21177070

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2897}}^1$

素因数の和:2964

約数の個数: 32

約数和(自身を含む): 41313888

約数和(自身を除く): 20136818

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 170, 215, 430, 731, 1462, 2897, 3655, 5794, 7310, 14485, 28970, 49249, 98498, 124571, 246245, 249142, 492490, 622855, 1245710, 2117707, 4235414, 10588535, 21177070]

約数ペア:

[(1, 21177070), (2, 10588535), (5, 4235414), (10, 2117707), (17, 1245710), (34, 622855), (43, 492490), (85, 249142), (86, 246245), (170, 124571), (215, 98498), (430, 49249), (731, 28970), (1462, 14485), (2897, 7310), (3655, 5794)]