20787825

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{8941}}^1$

素因数の和:8985

約数の個数: 24

約数和(自身を含む): 35481856

約数和(自身を除く): 14694031

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 465, 775, 2325, 8941, 26823, 44705, 134115, 223525, 277171, 670575, 831513, 1385855, 4157565, 6929275, 20787825]

約数ペア:

[(1, 20787825), (3, 6929275), (5, 4157565), (15, 1385855), (25, 831513), (31, 670575), (75, 277171), (93, 223525), (155, 134115), (465, 44705), (775, 26823), (2325, 8941)]