21180132

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{15901}}^1$

素因数の和:15948

約数の個数: 36

約数和(自身を含む): 54989116

約数和(自身を除く): 33808984

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 666, 1332, 15901, 31802, 47703, 63604, 95406, 143109, 190812, 286218, 572436, 588337, 1176674, 1765011, 2353348, 3530022, 5295033, 7060044, 10590066, 21180132]

約数ペア:

[(1, 21180132), (2, 10590066), (3, 7060044), (4, 5295033), (6, 3530022), (9, 2353348), (12, 1765011), (18, 1176674), (36, 588337), (37, 572436), (74, 286218), (111, 190812), (148, 143109), (222, 95406), (333, 63604), (444, 47703), (666, 31802), (1332, 15901)]