21456190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{306517}}^1$

素因数の和:306531

約数の個数: 16

約数和(自身を含む): 44138592

約数和(自身を除く): 22682402

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 306517, 613034, 1532585, 2145619, 3065170, 4291238, 10728095, 21456190]

約数ペア:

[(1, 21456190), (2, 10728095), (5, 4291238), (7, 3065170), (10, 2145619), (14, 1532585), (35, 613034), (70, 306517)]