20451873

素因数分解:

$3^1\times {\mathrm{13}}^3\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:178

約数の個数: 32

約数和(自身を含む): 30844800

約数和(自身を除く): 10392927

約数列:

[1, 3, 13, 29, 39, 87, 107, 169, 321, 377, 507, 1131, 1391, 2197, 3103, 4173, 4901, 6591, 9309, 14703, 18083, 40339, 54249, 63713, 121017, 191139, 235079, 524407, 705237, 1573221, 6817291, 20451873]

約数ペア:

[(1, 20451873), (3, 6817291), (13, 1573221), (29, 705237), (39, 524407), (87, 235079), (107, 191139), (169, 121017), (321, 63713), (377, 54249), (507, 40339), (1131, 18083), (1391, 14703), (2197, 9309), (3103, 6591), (4173, 4901)]