21340826

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{281}}^1$

素因数の和:446

約数の個数: 32

約数和(自身を含む): 36384768

約数和(自身を除く): 15043942

約数列:

[1, 2, 13, 23, 26, 46, 127, 254, 281, 299, 562, 598, 1651, 2921, 3302, 3653, 5842, 6463, 7306, 12926, 35687, 37973, 71374, 75946, 84019, 168038, 463931, 820801, 927862, 1641602, 10670413, 21340826]

約数ペア:

[(1, 21340826), (2, 10670413), (13, 1641602), (23, 927862), (26, 820801), (46, 463931), (127, 168038), (254, 84019), (281, 75946), (299, 71374), (562, 37973), (598, 35687), (1651, 12926), (2921, 7306), (3302, 6463), (3653, 5842)]