19721556

素因数分解:

$2^2\times 3^4\times {\mathrm{60869}}^1$

素因数の和:60885

約数の個数: 30

約数和(自身を含む): 51556890

約数和(自身を除く): 31835334

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 60869, 121738, 182607, 243476, 365214, 547821, 730428, 1095642, 1643463, 2191284, 3286926, 4930389, 6573852, 9860778, 19721556]

約数ペア:

[(1, 19721556), (2, 9860778), (3, 6573852), (4, 4930389), (6, 3286926), (9, 2191284), (12, 1643463), (18, 1095642), (27, 730428), (36, 547821), (54, 365214), (81, 243476), (108, 182607), (162, 121738), (324, 60869)]