19677903

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 31629312

約数和(自身を除く): 11951409

約数列:

[1, 3, 7, 21, 23, 69, 131, 161, 311, 393, 483, 917, 933, 2177, 2751, 3013, 6531, 7153, 9039, 21091, 21459, 40741, 50071, 63273, 122223, 150213, 285187, 855561, 937043, 2811129, 6559301, 19677903]

約数ペア:

[(1, 19677903), (3, 6559301), (7, 2811129), (21, 937043), (23, 855561), (69, 285187), (131, 150213), (161, 122223), (311, 63273), (393, 50071), (483, 40741), (917, 21459), (933, 21091), (2177, 9039), (2751, 7153), (3013, 6531)]