21498988

素因数分解:

$2^2\times 7^1\times {\mathrm{739}}^1\times {\mathrm{1039}}^1$

素因数の和:1789

約数の個数: 24

約数和(自身を含む): 43097600

約数和(自身を除く): 21598612

約数列:

[1, 2, 4, 7, 14, 28, 739, 1039, 1478, 2078, 2956, 4156, 5173, 7273, 10346, 14546, 20692, 29092, 767821, 1535642, 3071284, 5374747, 10749494, 21498988]

約数ペア:

[(1, 21498988), (2, 10749494), (4, 5374747), (7, 3071284), (14, 1535642), (28, 767821), (739, 29092), (1039, 20692), (1478, 14546), (2078, 10346), (2956, 7273), (4156, 5173)]