21235048

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{641}}^1$

素因数の和:789

約数の個数: 32

約数和(自身を含む): 41254920

約数和(自身を除く): 20019872

約数列:

[1, 2, 4, 8, 41, 82, 101, 164, 202, 328, 404, 641, 808, 1282, 2564, 4141, 5128, 8282, 16564, 26281, 33128, 52562, 64741, 105124, 129482, 210248, 258964, 517928, 2654381, 5308762, 10617524, 21235048]

約数ペア:

[(1, 21235048), (2, 10617524), (4, 5308762), (8, 2654381), (41, 517928), (82, 258964), (101, 210248), (164, 129482), (202, 105124), (328, 64741), (404, 52562), (641, 33128), (808, 26281), (1282, 16564), (2564, 8282), (4141, 5128)]