20145857529

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{463219}}^1$

素因数の和:463357

約数の個数: 32

約数和(自身を含む): 32610688000

約数和(自身を除く): 12464830471

約数列:

[1, 3, 7, 19, 21, 57, 109, 133, 327, 399, 763, 2071, 2289, 6213, 14497, 43491, 463219, 1389657, 3242533, 8801161, 9727599, 26403483, 50490871, 61608127, 151472613, 184824381, 353436097, 959326549, 1060308291, 2877979647, 6715285843, 20145857529]

約数ペア:

[(1, 20145857529), (3, 6715285843), (7, 2877979647), (19, 1060308291), (21, 959326549), (57, 353436097), (109, 184824381), (133, 151472613), (327, 61608127), (399, 50490871), (763, 26403483), (2071, 9727599), (2289, 8801161), (6213, 3242533), (14497, 1389657), (43491, 463219)]