21549572

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 43848000

約数和(自身を除く): 22298428

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 149, 173, 209, 298, 346, 418, 596, 692, 836, 1639, 1903, 2831, 3278, 3287, 3806, 5662, 6556, 6574, 7612, 11324, 13148, 25777, 31141, 36157, 51554, 62282, 72314, 103108, 124564, 144628, 283547, 489763, 567094, 979526, 1134188, 1959052, 5387393, 10774786, 21549572]

約数ペア:

[(1, 21549572), (2, 10774786), (4, 5387393), (11, 1959052), (19, 1134188), (22, 979526), (38, 567094), (44, 489763), (76, 283547), (149, 144628), (173, 124564), (209, 103108), (298, 72314), (346, 62282), (418, 51554), (596, 36157), (692, 31141), (836, 25777), (1639, 13148), (1903, 11324), (2831, 7612), (3278, 6574), (3287, 6556), (3806, 5662)]