401679

素因数分解:

$3^6\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:66

約数の個数: 28

約数和(自身を含む): 655800

約数和(自身を除く): 254121

約数列:

[1, 3, 9, 19, 27, 29, 57, 81, 87, 171, 243, 261, 513, 551, 729, 783, 1539, 1653, 2349, 4617, 4959, 7047, 13851, 14877, 21141, 44631, 133893, 401679]

約数ペア:

[(1, 401679), (3, 133893), (9, 44631), (19, 21141), (27, 14877), (29, 13851), (57, 7047), (81, 4959), (87, 4617), (171, 2349), (243, 1653), (261, 1539), (513, 783), (551, 729)]