20977385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29339}}^1$

素因数の和:29368

約数の個数: 16

約数和(自身を含む): 29574720

約数和(自身を除く): 8597335

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 29339, 146695, 322729, 381407, 1613645, 1907035, 4195477, 20977385]

約数ペア:

[(1, 20977385), (5, 4195477), (11, 1907035), (13, 1613645), (55, 381407), (65, 322729), (143, 146695), (715, 29339)]