21466705

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 29465856

約数和(自身を除く): 7999151

約数列:

[1, 5, 13, 23, 65, 83, 115, 173, 299, 415, 865, 1079, 1495, 1909, 2249, 3979, 5395, 9545, 11245, 14359, 19895, 24817, 51727, 71795, 124085, 186667, 258635, 330257, 933335, 1651285, 4293341, 21466705]

約数ペア:

[(1, 21466705), (5, 4293341), (13, 1651285), (23, 933335), (65, 330257), (83, 258635), (115, 186667), (173, 124085), (299, 71795), (415, 51727), (865, 24817), (1079, 19895), (1495, 14359), (1909, 11245), (2249, 9545), (3979, 5395)]