19720908

素因数分解:

$2^2\times 3^6\times {\mathrm{6763}}^1$

素因数の和:6785

約数の個数: 42

約数和(自身を含む): 51751364

約数和(自身を除く): 32030456

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2916, 6763, 13526, 20289, 27052, 40578, 60867, 81156, 121734, 182601, 243468, 365202, 547803, 730404, 1095606, 1643409, 2191212, 3286818, 4930227, 6573636, 9860454, 19720908]

約数ペア:

[(1, 19720908), (2, 9860454), (3, 6573636), (4, 4930227), (6, 3286818), (9, 2191212), (12, 1643409), (18, 1095606), (27, 730404), (36, 547803), (54, 365202), (81, 243468), (108, 182601), (162, 121734), (243, 81156), (324, 60867), (486, 40578), (729, 27052), (972, 20289), (1458, 13526), (2916, 6763)]