215901

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 374400

約数和(自身を除く): 158499

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 149, 161, 207, 447, 483, 1043, 1341, 1449, 3129, 3427, 9387, 10281, 23989, 30843, 71967, 215901]

約数ペア:

[(1, 215901), (3, 71967), (7, 30843), (9, 23989), (21, 10281), (23, 9387), (63, 3427), (69, 3129), (149, 1449), (161, 1341), (207, 1043), (447, 483)]