16221465

素因数分解:

$3^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1$

素因数の和:125

約数の個数: 72

約数和(自身を含む): 31973760

約数和(自身を除く): 15752295

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 79, 81, 117, 135, 169, 195, 237, 243, 351, 395, 405, 507, 585, 711, 845, 1027, 1053, 1185, 1215, 1521, 1755, 2133, 2535, 3081, 3159, 3555, 4563, 5135, 5265, 6399, 7605, 9243, 10665, 13351, 13689, 15405, 15795, 19197, 22815, 27729, 31995, 40053, 41067, 46215, 66755, 68445, 83187, 95985, 120159, 138645, 200265, 205335, 249561, 360477, 415935, 600795, 1081431, 1247805, 1802385, 3244293, 5407155, 16221465]

約数ペア:

[(1, 16221465), (3, 5407155), (5, 3244293), (9, 1802385), (13, 1247805), (15, 1081431), (27, 600795), (39, 415935), (45, 360477), (65, 249561), (79, 205335), (81, 200265), (117, 138645), (135, 120159), (169, 95985), (195, 83187), (237, 68445), (243, 66755), (351, 46215), (395, 41067), (405, 40053), (507, 31995), (585, 27729), (711, 22815), (845, 19197), (1027, 15795), (1053, 15405), (1185, 13689), (1215, 13351), (1521, 10665), (1755, 9243), (2133, 7605), (2535, 6399), (3081, 5265), (3159, 5135), (3555, 4563)]