20970818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{317}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 35900928

約数和(自身を除く): 14930110

約数列:

[1, 2, 11, 22, 31, 62, 97, 194, 317, 341, 634, 682, 1067, 2134, 3007, 3487, 6014, 6974, 9827, 19654, 30749, 33077, 61498, 66154, 108097, 216194, 338239, 676478, 953219, 1906438, 10485409, 20970818]

約数ペア:

[(1, 20970818), (2, 10485409), (11, 1906438), (22, 953219), (31, 676478), (62, 338239), (97, 216194), (194, 108097), (317, 66154), (341, 61498), (634, 33077), (682, 30749), (1067, 19654), (2134, 9827), (3007, 6974), (3487, 6014)]