19423019

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 25559040

約数和(自身を除く): 6136021

約数列:

[1, 7, 11, 31, 77, 79, 103, 217, 341, 553, 721, 869, 1133, 2387, 2449, 3193, 6083, 7931, 8137, 17143, 22351, 26939, 35123, 56959, 89507, 188573, 245861, 252247, 626549, 1765729, 2774717, 19423019]

約数ペア:

[(1, 19423019), (7, 2774717), (11, 1765729), (31, 626549), (77, 252247), (79, 245861), (103, 188573), (217, 89507), (341, 56959), (553, 35123), (721, 26939), (869, 22351), (1133, 17143), (2387, 8137), (2449, 7931), (3193, 6083)]