21722172

素因数分解:

$2^2\times 3^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 52040352

約数和(自身を除く): 30318180

約数列:

[1, 2, 3, 4, 6, 12, 73, 137, 146, 181, 219, 274, 292, 362, 411, 438, 543, 548, 724, 822, 876, 1086, 1644, 2172, 10001, 13213, 20002, 24797, 26426, 30003, 39639, 40004, 49594, 52852, 60006, 74391, 79278, 99188, 120012, 148782, 158556, 297564, 1810181, 3620362, 5430543, 7240724, 10861086, 21722172]

約数ペア:

[(1, 21722172), (2, 10861086), (3, 7240724), (4, 5430543), (6, 3620362), (12, 1810181), (73, 297564), (137, 158556), (146, 148782), (181, 120012), (219, 99188), (274, 79278), (292, 74391), (362, 60006), (411, 52852), (438, 49594), (543, 40004), (548, 39639), (724, 30003), (822, 26426), (876, 24797), (1086, 20002), (1644, 13213), (2172, 10001)]