20178873069

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1091}}^1\times {\mathrm{2477}}^1$

素因数の和:3721

約数の個数: 32

約数和(自身を含む): 28575106560

約数和(自身を除く): 8396233491

約数列:

[1, 3, 19, 57, 131, 393, 1091, 2477, 2489, 3273, 7431, 7467, 20729, 47063, 62187, 141189, 142921, 324487, 428763, 973461, 2702407, 2715499, 6165253, 8107221, 8146497, 18495759, 51345733, 154037199, 354015317, 1062045951, 6726291023, 20178873069]

約数ペア:

[(1, 20178873069), (3, 6726291023), (19, 1062045951), (57, 354015317), (131, 154037199), (393, 51345733), (1091, 18495759), (2477, 8146497), (2489, 8107221), (3273, 6165253), (7431, 2715499), (7467, 2702407), (20729, 973461), (47063, 428763), (62187, 324487), (141189, 142921)]