20620131

素因数分解:

$3^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{691}}^1$

素因数の和:744

約数の個数: 32

約数和(自身を含む): 33216000

約数和(自身を除く): 12595869

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 343, 609, 691, 1029, 1421, 2073, 4263, 4837, 9947, 14511, 20039, 29841, 33859, 60117, 101577, 140273, 237013, 420819, 711039, 981911, 2945733, 6873377, 20620131]

約数ペア:

[(1, 20620131), (3, 6873377), (7, 2945733), (21, 981911), (29, 711039), (49, 420819), (87, 237013), (147, 140273), (203, 101577), (343, 60117), (609, 33859), (691, 29841), (1029, 20039), (1421, 14511), (2073, 9947), (4263, 4837)]