20318985

素因数分解:

$3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3671}}^1$

素因数の和:3726

約数の個数: 32

約数和(自身を含む): 37013760

約数和(自身を除く): 16694775

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 123, 135, 205, 369, 615, 1107, 1845, 3671, 5535, 11013, 18355, 33039, 55065, 99117, 150511, 165195, 451533, 495585, 752555, 1354599, 2257665, 4063797, 6772995, 20318985]

約数ペア:

[(1, 20318985), (3, 6772995), (5, 4063797), (9, 2257665), (15, 1354599), (27, 752555), (41, 495585), (45, 451533), (123, 165195), (135, 150511), (205, 99117), (369, 55065), (615, 33039), (1107, 18355), (1845, 11013), (3671, 5535)]