20023648617

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2719}}^1\times {\mathrm{18457}}^1$

素因数の和:21205

約数の個数: 32

約数和(自身を含む): 32131686400

約数和(自身を除く): 12108037783

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 2719, 8157, 18457, 19033, 51661, 55371, 57099, 129199, 154983, 350683, 361627, 387597, 1052049, 1084881, 2454781, 7364343, 50184583, 150553749, 351292081, 953507077, 1053876243, 2860521231, 6674549539, 20023648617]

約数ペア:

[(1, 20023648617), (3, 6674549539), (7, 2860521231), (19, 1053876243), (21, 953507077), (57, 351292081), (133, 150553749), (399, 50184583), (2719, 7364343), (8157, 2454781), (18457, 1084881), (19033, 1052049), (51661, 387597), (55371, 361627), (57099, 350683), (129199, 154983)]