389383967

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{1181}}^1$

素因数の和:1311

約数の個数: 32

約数和(自身を含む): 488686080

約数和(自身を除く): 99302113

約数列:

[1, 7, 19, 37, 67, 133, 259, 469, 703, 1181, 1273, 2479, 4921, 8267, 8911, 17353, 22439, 43697, 47101, 79127, 157073, 305879, 329707, 553889, 830243, 1503413, 2927699, 5811701, 10523891, 20493893, 55626281, 389383967]

約数ペア:

[(1, 389383967), (7, 55626281), (19, 20493893), (37, 10523891), (67, 5811701), (133, 2927699), (259, 1503413), (469, 830243), (703, 553889), (1181, 329707), (1273, 305879), (2479, 157073), (4921, 79127), (8267, 47101), (8911, 43697), (17353, 22439)]