21072380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{150517}}^1$

素因数の和:150533

約数の個数: 24

約数和(自身を含む): 50574048

約数和(自身を除く): 29501668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 150517, 301034, 602068, 752585, 1053619, 1505170, 2107238, 3010340, 4214476, 5268095, 10536190, 21072380]

約数ペア:

[(1, 21072380), (2, 10536190), (4, 5268095), (5, 4214476), (7, 3010340), (10, 2107238), (14, 1505170), (20, 1053619), (28, 752585), (35, 602068), (70, 301034), (140, 150517)]