21617316

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{787}}^1$

素因数の和:913

約数の個数: 72

約数和(自身を含む): 63103040

約数和(自身を除く): 41485724

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 109, 126, 218, 252, 327, 436, 654, 763, 787, 981, 1308, 1526, 1574, 1962, 2289, 2361, 3052, 3148, 3924, 4578, 4722, 5509, 6867, 7083, 9156, 9444, 11018, 13734, 14166, 16527, 22036, 27468, 28332, 33054, 49581, 66108, 85783, 99162, 171566, 198324, 257349, 343132, 514698, 600481, 772047, 1029396, 1200962, 1544094, 1801443, 2401924, 3088188, 3602886, 5404329, 7205772, 10808658, 21617316]

約数ペア:

[(1, 21617316), (2, 10808658), (3, 7205772), (4, 5404329), (6, 3602886), (7, 3088188), (9, 2401924), (12, 1801443), (14, 1544094), (18, 1200962), (21, 1029396), (28, 772047), (36, 600481), (42, 514698), (63, 343132), (84, 257349), (109, 198324), (126, 171566), (218, 99162), (252, 85783), (327, 66108), (436, 49581), (654, 33054), (763, 28332), (787, 27468), (981, 22036), (1308, 16527), (1526, 14166), (1574, 13734), (1962, 11018), (2289, 9444), (2361, 9156), (3052, 7083), (3148, 6867), (3924, 5509), (4578, 4722)]