21000606788

素因数分解:

$2^2\times 7^2\times {\mathrm{379}}^1\times {\mathrm{282707}}^1$

素因数の和:283104

約数の個数: 36

約数和(自身を含む): 42864186960

約数和(自身を除く): 21863580172

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 379, 758, 1516, 2653, 5306, 10612, 18571, 37142, 74284, 282707, 565414, 1130828, 1978949, 3957898, 7915796, 13852643, 27705286, 55410572, 107145953, 214291906, 428583812, 750021671, 1500043342, 3000086684, 5250151697, 10500303394, 21000606788]

約数ペア:

[(1, 21000606788), (2, 10500303394), (4, 5250151697), (7, 3000086684), (14, 1500043342), (28, 750021671), (49, 428583812), (98, 214291906), (196, 107145953), (379, 55410572), (758, 27705286), (1516, 13852643), (2653, 7915796), (5306, 3957898), (10612, 1978949), (18571, 1130828), (37142, 565414), (74284, 282707)]