21187518

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{3607}}^1$

素因数の和:3712

約数の個数: 32

約数和(自身を含む): 46759680

約数和(自身を除く): 25572162

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 89, 178, 267, 534, 979, 1958, 2937, 3607, 5874, 7214, 10821, 21642, 39677, 79354, 119031, 238062, 321023, 642046, 963069, 1926138, 3531253, 7062506, 10593759, 21187518]

約数ペア:

[(1, 21187518), (2, 10593759), (3, 7062506), (6, 3531253), (11, 1926138), (22, 963069), (33, 642046), (66, 321023), (89, 238062), (178, 119031), (267, 79354), (534, 39677), (979, 21642), (1958, 10821), (2937, 7214), (3607, 5874)]