21393844

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{4663}}^1$

素因数の和:4735

約数の個数: 24

約数和(自身を含む): 39699968

約数和(自身を除く): 18306124

約数列:

[1, 2, 4, 31, 37, 62, 74, 124, 148, 1147, 2294, 4588, 4663, 9326, 18652, 144553, 172531, 289106, 345062, 578212, 690124, 5348461, 10696922, 21393844]

約数ペア:

[(1, 21393844), (2, 10696922), (4, 5348461), (31, 690124), (37, 578212), (62, 345062), (74, 289106), (124, 172531), (148, 144553), (1147, 18652), (2294, 9326), (4588, 4663)]