20263243

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:715

約数の個数: 32

約数和(自身を含む): 28127232

約数和(自身を除く): 7863989

約数列:

[1, 7, 11, 13, 31, 77, 91, 143, 217, 341, 403, 653, 1001, 2387, 2821, 4433, 4571, 7183, 8489, 20243, 31031, 50281, 59423, 93379, 141701, 222673, 263159, 653653, 1558711, 1842113, 2894749, 20263243]

約数ペア:

[(1, 20263243), (7, 2894749), (11, 1842113), (13, 1558711), (31, 653653), (77, 263159), (91, 222673), (143, 141701), (217, 93379), (341, 59423), (403, 50281), (653, 31031), (1001, 20243), (2387, 8489), (2821, 7183), (4433, 4571)]