21212380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151517}}^1$

素因数の和:151533

約数の個数: 24

約数和(自身を含む): 50910048

約数和(自身を除く): 29697668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151517, 303034, 606068, 757585, 1060619, 1515170, 2121238, 3030340, 4242476, 5303095, 10606190, 21212380]

約数ペア:

[(1, 21212380), (2, 10606190), (4, 5303095), (5, 4242476), (7, 3030340), (10, 2121238), (14, 1515170), (20, 1060619), (28, 757585), (35, 606068), (70, 303034), (140, 151517)]