21412521

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{929}}^1$

素因数の和:1145

約数の個数: 24

約数和(自身を含む): 33513480

約数和(自身を除く): 12100959

約数列:

[1, 3, 9, 13, 39, 117, 197, 591, 929, 1773, 2561, 2787, 7683, 8361, 12077, 23049, 36231, 108693, 183013, 549039, 1647117, 2379169, 7137507, 21412521]

約数ペア:

[(1, 21412521), (3, 7137507), (9, 2379169), (13, 1647117), (39, 549039), (117, 183013), (197, 108693), (591, 36231), (929, 23049), (1773, 12077), (2561, 8361), (2787, 7683)]