16840215

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{277}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 33653568

約数和(自身を除く): 16813353

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 193, 277, 315, 579, 831, 965, 1351, 1385, 1737, 1939, 2493, 2895, 4053, 4155, 5817, 6755, 8685, 9695, 12159, 12465, 17451, 20265, 29085, 53461, 60795, 87255, 160383, 267305, 374227, 481149, 801915, 1122681, 1871135, 2405745, 3368043, 5613405, 16840215]

約数ペア:

[(1, 16840215), (3, 5613405), (5, 3368043), (7, 2405745), (9, 1871135), (15, 1122681), (21, 801915), (35, 481149), (45, 374227), (63, 267305), (105, 160383), (193, 87255), (277, 60795), (315, 53461), (579, 29085), (831, 20265), (965, 17451), (1351, 12465), (1385, 12159), (1737, 9695), (1939, 8685), (2493, 6755), (2895, 5817), (4053, 4155)]