21243254

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1$

素因数の和:608

約数の個数: 32

約数和(自身を含む): 35704800

約数和(自身を除く): 14461546

約数列:

[1, 2, 19, 29, 37, 38, 58, 74, 521, 551, 703, 1042, 1073, 1102, 1406, 2146, 9899, 15109, 19277, 19798, 20387, 30218, 38554, 40774, 287071, 366263, 559033, 574142, 732526, 1118066, 10621627, 21243254]

約数ペア:

[(1, 21243254), (2, 10621627), (19, 1118066), (29, 732526), (37, 574142), (38, 559033), (58, 366263), (74, 287071), (521, 40774), (551, 38554), (703, 30218), (1042, 20387), (1073, 19798), (1102, 19277), (1406, 15109), (2146, 9899)]