20413485

素因数分解:

$3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1699}}^1$

素因数の和:1802

約数の個数: 32

約数和(自身を含む): 36720000

約数和(自身を除く): 16306515

約数列:

[1, 3, 5, 9, 15, 27, 45, 89, 135, 267, 445, 801, 1335, 1699, 2403, 4005, 5097, 8495, 12015, 15291, 25485, 45873, 76455, 151211, 229365, 453633, 756055, 1360899, 2268165, 4082697, 6804495, 20413485]

約数ペア:

[(1, 20413485), (3, 6804495), (5, 4082697), (9, 2268165), (15, 1360899), (27, 756055), (45, 453633), (89, 229365), (135, 151211), (267, 76455), (445, 45873), (801, 25485), (1335, 15291), (1699, 12015), (2403, 8495), (4005, 5097)]