20411595

素因数分解:

$3^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{499}}^1$

素因数の和:617

約数の個数: 40

約数和(自身を含む): 37026000

約数和(自身を除く): 16614405

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 101, 135, 303, 405, 499, 505, 909, 1497, 1515, 2495, 2727, 4491, 4545, 7485, 8181, 13473, 13635, 22455, 40419, 40905, 50399, 67365, 151197, 202095, 251995, 453591, 755985, 1360773, 2267955, 4082319, 6803865, 20411595]

約数ペア:

[(1, 20411595), (3, 6803865), (5, 4082319), (9, 2267955), (15, 1360773), (27, 755985), (45, 453591), (81, 251995), (101, 202095), (135, 151197), (303, 67365), (405, 50399), (499, 40905), (505, 40419), (909, 22455), (1497, 13635), (1515, 13473), (2495, 8181), (2727, 7485), (4491, 4545)]