20811245

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{863}}^1$

素因数の和:941

約数の個数: 32

約数和(自身を含む): 31352832

約数和(自身を除く): 10541587

約数列:

[1, 5, 7, 13, 35, 53, 65, 91, 265, 371, 455, 689, 863, 1855, 3445, 4315, 4823, 6041, 11219, 24115, 30205, 45739, 56095, 78533, 228695, 320173, 392665, 594607, 1600865, 2973035, 4162249, 20811245]

約数ペア:

[(1, 20811245), (5, 4162249), (7, 2973035), (13, 1600865), (35, 594607), (53, 392665), (65, 320173), (91, 228695), (265, 78533), (371, 56095), (455, 45739), (689, 30205), (863, 24115), (1855, 11219), (3445, 6041), (4315, 4823)]