19700631

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:300

約数の個数: 32

約数和(自身を含む): 30240000

約数和(自身を除く): 10539369

約数列:

[1, 3, 9, 27, 59, 83, 149, 177, 249, 447, 531, 747, 1341, 1593, 2241, 4023, 4897, 8791, 12367, 14691, 26373, 37101, 44073, 79119, 111303, 132219, 237357, 333909, 729653, 2188959, 6566877, 19700631]

約数ペア:

[(1, 19700631), (3, 6566877), (9, 2188959), (27, 729653), (59, 333909), (83, 237357), (149, 132219), (177, 111303), (249, 79119), (447, 44073), (531, 37101), (747, 26373), (1341, 14691), (1593, 12367), (2241, 8791), (4023, 4897)]