21693399

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{347}}^1$

素因数の和:599

約数の個数: 32

約数和(自身を含む): 35857920

約数和(自身を除く): 14164521

約数列:

[1, 3, 7, 13, 21, 39, 91, 229, 273, 347, 687, 1041, 1603, 2429, 2977, 4511, 4809, 7287, 8931, 13533, 20839, 31577, 62517, 79463, 94731, 238389, 556241, 1033019, 1668723, 3099057, 7231133, 21693399]

約数ペア:

[(1, 21693399), (3, 7231133), (7, 3099057), (13, 1668723), (21, 1033019), (39, 556241), (91, 238389), (229, 94731), (273, 79463), (347, 62517), (687, 31577), (1041, 20839), (1603, 13533), (2429, 8931), (2977, 7287), (4511, 4809)]