21937905

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:132

約数の個数: 96

約数和(自身を含む): 45964800

約数和(自身を除く): 24026895

約数列:

[1, 3, 5, 9, 11, 15, 17, 27, 33, 45, 51, 55, 79, 85, 99, 121, 135, 153, 165, 187, 237, 255, 297, 363, 395, 459, 495, 561, 605, 711, 765, 869, 935, 1089, 1185, 1343, 1485, 1683, 1815, 2057, 2133, 2295, 2607, 2805, 3267, 3555, 4029, 4345, 5049, 5445, 6171, 6715, 7821, 8415, 9559, 10285, 10665, 12087, 13035, 14773, 16335, 18513, 20145, 23463, 25245, 28677, 30855, 36261, 39105, 44319, 47795, 55539, 60435, 73865, 86031, 92565, 117315, 132957, 143385, 162503, 181305, 221595, 258093, 277695, 398871, 430155, 487509, 664785, 812515, 1290465, 1462527, 1994355, 2437545, 4387581, 7312635, 21937905]

約数ペア:

[(1, 21937905), (3, 7312635), (5, 4387581), (9, 2437545), (11, 1994355), (15, 1462527), (17, 1290465), (27, 812515), (33, 664785), (45, 487509), (51, 430155), (55, 398871), (79, 277695), (85, 258093), (99, 221595), (121, 181305), (135, 162503), (153, 143385), (165, 132957), (187, 117315), (237, 92565), (255, 86031), (297, 73865), (363, 60435), (395, 55539), (459, 47795), (495, 44319), (561, 39105), (605, 36261), (711, 30855), (765, 28677), (869, 25245), (935, 23463), (1089, 20145), (1185, 18513), (1343, 16335), (1485, 14773), (1683, 13035), (1815, 12087), (2057, 10665), (2133, 10285), (2295, 9559), (2607, 8415), (2805, 7821), (3267, 6715), (3555, 6171), (4029, 5445), (4345, 5049)]