21918855

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1049}}^1$

素因数の和:1263

約数の個数: 32

約数和(自身を含む): 40320000

約数和(自身を除く): 18401145

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 199, 597, 995, 1049, 1393, 2985, 3147, 4179, 5245, 6965, 7343, 15735, 20895, 22029, 36715, 110145, 208751, 626253, 1043755, 1461257, 3131265, 4383771, 7306285, 21918855]

約数ペア:

[(1, 21918855), (3, 7306285), (5, 4383771), (7, 3131265), (15, 1461257), (21, 1043755), (35, 626253), (105, 208751), (199, 110145), (597, 36715), (995, 22029), (1049, 20895), (1393, 15735), (2985, 7343), (3147, 6965), (4179, 5245)]