427917

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 24

約数和(自身を含む): 689472

約数和(自身を除く): 261555

約数列:

[1, 3, 7, 21, 41, 49, 71, 123, 147, 213, 287, 497, 861, 1491, 2009, 2911, 3479, 6027, 8733, 10437, 20377, 61131, 142639, 427917]

約数ペア:

[(1, 427917), (3, 142639), (7, 61131), (21, 20377), (41, 10437), (49, 8733), (71, 6027), (123, 3479), (147, 2911), (213, 2009), (287, 1491), (497, 861)]