21911580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{40577}}^1$

素因数の和:40595

約数の個数: 48

約数和(自身を含む): 68171040

約数和(自身を除く): 46259460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 40577, 81154, 121731, 162308, 202885, 243462, 365193, 405770, 486924, 608655, 730386, 811540, 1095579, 1217310, 1460772, 1825965, 2191158, 2434620, 3651930, 4382316, 5477895, 7303860, 10955790, 21911580]

約数ペア:

[(1, 21911580), (2, 10955790), (3, 7303860), (4, 5477895), (5, 4382316), (6, 3651930), (9, 2434620), (10, 2191158), (12, 1825965), (15, 1460772), (18, 1217310), (20, 1095579), (27, 811540), (30, 730386), (36, 608655), (45, 486924), (54, 405770), (60, 365193), (90, 243462), (108, 202885), (135, 162308), (180, 121731), (270, 81154), (540, 40577)]