19541690

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2099}}^1$

素因数の和:2139

約数の個数: 48

約数和(自身を含む): 43092000

約数和(自身を除く): 23550310

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 245, 266, 490, 665, 931, 1330, 1862, 2099, 4198, 4655, 9310, 10495, 14693, 20990, 29386, 39881, 73465, 79762, 102851, 146930, 199405, 205702, 279167, 398810, 514255, 558334, 1028510, 1395835, 1954169, 2791670, 3908338, 9770845, 19541690]

約数ペア:

[(1, 19541690), (2, 9770845), (5, 3908338), (7, 2791670), (10, 1954169), (14, 1395835), (19, 1028510), (35, 558334), (38, 514255), (49, 398810), (70, 279167), (95, 205702), (98, 199405), (133, 146930), (190, 102851), (245, 79762), (266, 73465), (490, 39881), (665, 29386), (931, 20990), (1330, 14693), (1862, 10495), (2099, 9310), (4198, 4655)]