18242679

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3517}}^1$

素因数の和:3559

約数の個数: 32

約数和(自身を含む): 31521280

約数和(自身を除く): 13278601

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 3517, 5187, 10551, 24619, 45721, 66823, 73857, 137163, 200469, 320047, 467761, 868699, 960141, 1403283, 2606097, 6080893, 18242679]

約数ペア:

[(1, 18242679), (3, 6080893), (7, 2606097), (13, 1403283), (19, 960141), (21, 868699), (39, 467761), (57, 320047), (91, 200469), (133, 137163), (247, 73857), (273, 66823), (399, 45721), (741, 24619), (1729, 10551), (3517, 5187)]