20860005

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1381}}^1$

素因数の和:1461

約数の個数: 32

約数和(自身を含む): 35821440

約数和(自身を除く): 14961435

約数列:

[1, 3, 5, 15, 19, 53, 57, 95, 159, 265, 285, 795, 1007, 1381, 3021, 4143, 5035, 6905, 15105, 20715, 26239, 73193, 78717, 131195, 219579, 365965, 393585, 1097895, 1390667, 4172001, 6953335, 20860005]

約数ペア:

[(1, 20860005), (3, 6953335), (5, 4172001), (15, 1390667), (19, 1097895), (53, 393585), (57, 365965), (95, 219579), (159, 131195), (265, 78717), (285, 73193), (795, 26239), (1007, 20715), (1381, 15105), (3021, 6905), (4143, 5035)]