21415407

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{227}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 32175360

約数和(自身を除く): 10759953

約数列:

[1, 3, 13, 39, 41, 59, 123, 177, 227, 533, 681, 767, 1599, 2301, 2419, 2951, 7257, 8853, 9307, 13393, 27921, 31447, 40179, 94341, 120991, 174109, 362973, 522327, 549113, 1647339, 7138469, 21415407]

約数ペア:

[(1, 21415407), (3, 7138469), (13, 1647339), (39, 549113), (41, 522327), (59, 362973), (123, 174109), (177, 120991), (227, 94341), (533, 40179), (681, 31447), (767, 27921), (1599, 13393), (2301, 9307), (2419, 8853), (2951, 7257)]