21874743

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{379}}^1$

素因数の和:460

約数の個数: 36

約数和(自身を含む): 35479080

約数和(自身を除く): 13604337

約数列:

[1, 3, 9, 11, 33, 53, 99, 121, 159, 363, 379, 477, 583, 1089, 1137, 1749, 3411, 4169, 5247, 6413, 12507, 19239, 20087, 37521, 45859, 57717, 60261, 137577, 180783, 220957, 412731, 662871, 1988613, 2430527, 7291581, 21874743]

約数ペア:

[(1, 21874743), (3, 7291581), (9, 2430527), (11, 1988613), (33, 662871), (53, 412731), (99, 220957), (121, 180783), (159, 137577), (363, 60261), (379, 57717), (477, 45859), (583, 37521), (1089, 20087), (1137, 19239), (1749, 12507), (3411, 6413), (4169, 5247)]