18418929

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 27033600

約数和(自身を除く): 8614671

約数列:

[1, 3, 23, 31, 69, 79, 93, 109, 237, 327, 713, 1817, 2139, 2449, 2507, 3379, 5451, 7347, 7521, 8611, 10137, 25833, 56327, 77717, 168981, 198053, 233151, 266941, 594159, 800823, 6139643, 18418929]

約数ペア:

[(1, 18418929), (3, 6139643), (23, 800823), (31, 594159), (69, 266941), (79, 233151), (93, 198053), (109, 168981), (237, 77717), (327, 56327), (713, 25833), (1817, 10137), (2139, 8611), (2449, 7521), (2507, 7347), (3379, 5451)]