21242877

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 31726080

約数和(自身を除く): 10483203

約数列:

[1, 3, 17, 29, 51, 53, 87, 159, 271, 493, 813, 901, 1479, 1537, 2703, 4607, 4611, 7859, 13821, 14363, 23577, 26129, 43089, 78387, 133603, 244171, 400809, 416527, 732513, 1249581, 7080959, 21242877]

約数ペア:

[(1, 21242877), (3, 7080959), (17, 1249581), (29, 732513), (51, 416527), (53, 400809), (87, 244171), (159, 133603), (271, 78387), (493, 43089), (813, 26129), (901, 23577), (1479, 14363), (1537, 13821), (2703, 7859), (4607, 4611)]