21619850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{277}}^1$

素因数の和:519

約数の個数: 48

約数和(自身を含む): 46330368

約数和(自身を除く): 24710518

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 223, 277, 350, 446, 554, 1115, 1385, 1561, 1939, 2230, 2770, 3122, 3878, 5575, 6925, 7805, 9695, 11150, 13850, 15610, 19390, 39025, 48475, 61771, 78050, 96950, 123542, 308855, 432397, 617710, 864794, 1544275, 2161985, 3088550, 4323970, 10809925, 21619850]

約数ペア:

[(1, 21619850), (2, 10809925), (5, 4323970), (7, 3088550), (10, 2161985), (14, 1544275), (25, 864794), (35, 617710), (50, 432397), (70, 308855), (175, 123542), (223, 96950), (277, 78050), (350, 61771), (446, 48475), (554, 39025), (1115, 19390), (1385, 15610), (1561, 13850), (1939, 11150), (2230, 9695), (2770, 7805), (3122, 6925), (3878, 5575)]