20931420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20521}}^1$

素因数の和:20550

約数の個数: 48

約数和(自身を含む): 62058528

約数和(自身を除く): 41127108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 20521, 41042, 61563, 82084, 102605, 123126, 205210, 246252, 307815, 348857, 410420, 615630, 697714, 1046571, 1231260, 1395428, 1744285, 2093142, 3488570, 4186284, 5232855, 6977140, 10465710, 20931420]

約数ペア:

[(1, 20931420), (2, 10465710), (3, 6977140), (4, 5232855), (5, 4186284), (6, 3488570), (10, 2093142), (12, 1744285), (15, 1395428), (17, 1231260), (20, 1046571), (30, 697714), (34, 615630), (51, 410420), (60, 348857), (68, 307815), (85, 246252), (102, 205210), (170, 123126), (204, 102605), (255, 82084), (340, 61563), (510, 41042), (1020, 20521)]