21100635

素因数分解:

$3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1049}}^1$

素因数の和:1212

約数の個数: 32

約数和(自身を含む): 37800000

約数和(自身を除く): 16699365

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 149, 447, 745, 1049, 1341, 2235, 3147, 4023, 5245, 6705, 9441, 15735, 20115, 28323, 47205, 141615, 156301, 468903, 781505, 1406709, 2344515, 4220127, 7033545, 21100635]

約数ペア:

[(1, 21100635), (3, 7033545), (5, 4220127), (9, 2344515), (15, 1406709), (27, 781505), (45, 468903), (135, 156301), (149, 141615), (447, 47205), (745, 28323), (1049, 20115), (1341, 15735), (2235, 9441), (3147, 6705), (4023, 5245)]