21741385

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 29417472

約数和(自身を除く): 7676087

約数列:

[1, 5, 17, 31, 37, 85, 155, 185, 223, 527, 629, 1115, 1147, 2635, 3145, 3791, 5735, 6913, 8251, 18955, 19499, 34565, 41255, 97495, 117521, 140267, 255781, 587605, 701335, 1278905, 4348277, 21741385]

約数ペア:

[(1, 21741385), (5, 4348277), (17, 1278905), (31, 701335), (37, 587605), (85, 255781), (155, 140267), (185, 117521), (223, 97495), (527, 41255), (629, 34565), (1115, 19499), (1147, 18955), (2635, 8251), (3145, 6913), (3791, 5735)]