28470771

素因数分解:

$3^4\times 7^1\times {\mathrm{149}}^1\times {\mathrm{337}}^1$

素因数の和:505

約数の個数: 40

約数和(自身を含む): 49077600

約数和(自身を除く): 20606829

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 149, 189, 337, 447, 567, 1011, 1043, 1341, 2359, 3033, 3129, 4023, 7077, 9099, 9387, 12069, 21231, 27297, 28161, 50213, 63693, 84483, 150639, 191079, 351491, 451917, 1054473, 1355751, 3163419, 4067253, 9490257, 28470771]

約数ペア:

[(1, 28470771), (3, 9490257), (7, 4067253), (9, 3163419), (21, 1355751), (27, 1054473), (63, 451917), (81, 351491), (149, 191079), (189, 150639), (337, 84483), (447, 63693), (567, 50213), (1011, 28161), (1043, 27297), (1341, 21231), (2359, 12069), (3033, 9387), (3129, 9099), (4023, 7077)]