21266544

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:394

約数の個数: 80

約数和(自身を含む): 59808672

約数和(自身を除く): 38542128

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 173, 197, 208, 312, 346, 394, 519, 591, 624, 692, 788, 1038, 1182, 1384, 1576, 2076, 2249, 2364, 2561, 2768, 3152, 4152, 4498, 4728, 5122, 6747, 7683, 8304, 8996, 9456, 10244, 13494, 15366, 17992, 20488, 26988, 30732, 34081, 35984, 40976, 53976, 61464, 68162, 102243, 107952, 122928, 136324, 204486, 272648, 408972, 443053, 545296, 817944, 886106, 1329159, 1635888, 1772212, 2658318, 3544424, 5316636, 7088848, 10633272, 21266544]

約数ペア:

[(1, 21266544), (2, 10633272), (3, 7088848), (4, 5316636), (6, 3544424), (8, 2658318), (12, 1772212), (13, 1635888), (16, 1329159), (24, 886106), (26, 817944), (39, 545296), (48, 443053), (52, 408972), (78, 272648), (104, 204486), (156, 136324), (173, 122928), (197, 107952), (208, 102243), (312, 68162), (346, 61464), (394, 53976), (519, 40976), (591, 35984), (624, 34081), (692, 30732), (788, 26988), (1038, 20488), (1182, 17992), (1384, 15366), (1576, 13494), (2076, 10244), (2249, 9456), (2364, 8996), (2561, 8304), (2768, 7683), (3152, 6747), (4152, 5122), (4498, 4728)]