20998164

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{587}}^1$

素因数の和:876

約数の個数: 48

約数和(自身を含む): 53738496

約数和(自身を除く): 32740332

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 271, 542, 587, 813, 1084, 1174, 1626, 1761, 2348, 2981, 3252, 3522, 5962, 6457, 7044, 8943, 11924, 12914, 17886, 19371, 25828, 35772, 38742, 77484, 159077, 318154, 477231, 636308, 954462, 1749847, 1908924, 3499694, 5249541, 6999388, 10499082, 20998164]

約数ペア:

[(1, 20998164), (2, 10499082), (3, 6999388), (4, 5249541), (6, 3499694), (11, 1908924), (12, 1749847), (22, 954462), (33, 636308), (44, 477231), (66, 318154), (132, 159077), (271, 77484), (542, 38742), (587, 35772), (813, 25828), (1084, 19371), (1174, 17886), (1626, 12914), (1761, 11924), (2348, 8943), (2981, 7044), (3252, 6457), (3522, 5962)]