21987742

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1747}}^1$

素因数の和:1816

約数の個数: 32

約数和(自身を含む): 40273920

約数和(自身を除く): 18286178

約数列:

[1, 2, 7, 14, 29, 31, 58, 62, 203, 217, 406, 434, 899, 1747, 1798, 3494, 6293, 12229, 12586, 24458, 50663, 54157, 101326, 108314, 354641, 379099, 709282, 758198, 1570553, 3141106, 10993871, 21987742]

約数ペア:

[(1, 21987742), (2, 10993871), (7, 3141106), (14, 1570553), (29, 758198), (31, 709282), (58, 379099), (62, 354641), (203, 108314), (217, 101326), (406, 54157), (434, 50663), (899, 24458), (1747, 12586), (1798, 12229), (3494, 6293)]