21453537

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{24917}}^1$

素因数の和:24968

約数の個数: 16

約数和(自身を含む): 33489792

約数和(自身を除く): 12036255

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 24917, 74751, 174419, 523257, 1021597, 3064791, 7151179, 21453537]

約数ペア:

[(1, 21453537), (3, 7151179), (7, 3064791), (21, 1021597), (41, 523257), (123, 174419), (287, 74751), (861, 24917)]