21691065

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:103

約数の個数: 96

約数和(自身を含む): 43666560

約数和(自身を除く): 21975495

約数列:

[1, 3, 5, 11, 15, 17, 19, 33, 37, 51, 55, 57, 85, 95, 111, 121, 165, 185, 187, 209, 255, 285, 323, 363, 407, 555, 561, 605, 627, 629, 703, 935, 969, 1045, 1221, 1615, 1815, 1887, 2035, 2057, 2109, 2299, 2805, 3135, 3145, 3515, 3553, 4477, 4845, 6105, 6171, 6897, 6919, 7733, 9435, 10285, 10545, 10659, 11495, 11951, 13431, 17765, 20757, 22385, 23199, 30855, 34485, 34595, 35853, 38665, 39083, 53295, 59755, 67155, 76109, 85063, 103785, 115995, 117249, 131461, 179265, 195415, 228327, 255189, 380545, 394383, 425315, 586245, 657305, 1141635, 1275945, 1446071, 1971915, 4338213, 7230355, 21691065]

約数ペア:

[(1, 21691065), (3, 7230355), (5, 4338213), (11, 1971915), (15, 1446071), (17, 1275945), (19, 1141635), (33, 657305), (37, 586245), (51, 425315), (55, 394383), (57, 380545), (85, 255189), (95, 228327), (111, 195415), (121, 179265), (165, 131461), (185, 117249), (187, 115995), (209, 103785), (255, 85063), (285, 76109), (323, 67155), (363, 59755), (407, 53295), (555, 39083), (561, 38665), (605, 35853), (627, 34595), (629, 34485), (703, 30855), (935, 23199), (969, 22385), (1045, 20757), (1221, 17765), (1615, 13431), (1815, 11951), (1887, 11495), (2035, 10659), (2057, 10545), (2109, 10285), (2299, 9435), (2805, 7733), (3135, 6919), (3145, 6897), (3515, 6171), (3553, 6105), (4477, 4845)]