19770219

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 34504704

約数和(自身を除く): 14734485

約数列:

[1, 3, 7, 9, 21, 31, 53, 63, 93, 159, 191, 217, 279, 371, 477, 573, 651, 1113, 1337, 1643, 1719, 1953, 3339, 4011, 4929, 5921, 10123, 11501, 12033, 14787, 17763, 30369, 34503, 41447, 53289, 70861, 91107, 103509, 124341, 212583, 313813, 373023, 637749, 941439, 2196691, 2824317, 6590073, 19770219]

約数ペア:

[(1, 19770219), (3, 6590073), (7, 2824317), (9, 2196691), (21, 941439), (31, 637749), (53, 373023), (63, 313813), (93, 212583), (159, 124341), (191, 103509), (217, 91107), (279, 70861), (371, 53289), (477, 41447), (573, 34503), (651, 30369), (1113, 17763), (1337, 14787), (1643, 12033), (1719, 11501), (1953, 10123), (3339, 5921), (4011, 4929)]