21709656

素因数分解:

$2^3\times 3^2\times {\mathrm{61}}^1\times {\mathrm{4943}}^1$

素因数の和:5016

約数の個数: 48

約数和(自身を含む): 59772960

約数和(自身を除く): 38063304

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 61, 72, 122, 183, 244, 366, 488, 549, 732, 1098, 1464, 2196, 4392, 4943, 9886, 14829, 19772, 29658, 39544, 44487, 59316, 88974, 118632, 177948, 301523, 355896, 603046, 904569, 1206092, 1809138, 2412184, 2713707, 3618276, 5427414, 7236552, 10854828, 21709656]

約数ペア:

[(1, 21709656), (2, 10854828), (3, 7236552), (4, 5427414), (6, 3618276), (8, 2713707), (9, 2412184), (12, 1809138), (18, 1206092), (24, 904569), (36, 603046), (61, 355896), (72, 301523), (122, 177948), (183, 118632), (244, 88974), (366, 59316), (488, 44487), (549, 39544), (732, 29658), (1098, 19772), (1464, 14829), (2196, 9886), (4392, 4943)]