21492578019

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1621}}^1\times {\mathrm{10859}}^1$

素因数の和:12531

約数の個数: 32

約数和(自身を含む): 32129614080

約数和(自身を除く): 10637036061

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 1621, 4863, 10859, 17831, 32577, 53493, 59977, 119449, 179931, 358347, 401783, 659747, 1205349, 1979241, 4419613, 13258839, 17602439, 52807317, 193626829, 580880487, 651290243, 1953870729, 7164192673, 21492578019]

約数ペア:

[(1, 21492578019), (3, 7164192673), (11, 1953870729), (33, 651290243), (37, 580880487), (111, 193626829), (407, 52807317), (1221, 17602439), (1621, 13258839), (4863, 4419613), (10859, 1979241), (17831, 1205349), (32577, 659747), (53493, 401783), (59977, 358347), (119449, 179931)]