21020256

素因数分解:

$2^5\times 3^3\times {\mathrm{24329}}^1$

素因数の和:24348

約数の個数: 48

約数和(自身を含む): 61311600

約数和(自身を除く): 40291344

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 96, 108, 144, 216, 288, 432, 864, 24329, 48658, 72987, 97316, 145974, 194632, 218961, 291948, 389264, 437922, 583896, 656883, 778528, 875844, 1167792, 1313766, 1751688, 2335584, 2627532, 3503376, 5255064, 7006752, 10510128, 21020256]

約数ペア:

[(1, 21020256), (2, 10510128), (3, 7006752), (4, 5255064), (6, 3503376), (8, 2627532), (9, 2335584), (12, 1751688), (16, 1313766), (18, 1167792), (24, 875844), (27, 778528), (32, 656883), (36, 583896), (48, 437922), (54, 389264), (72, 291948), (96, 218961), (108, 194632), (144, 145974), (216, 97316), (288, 72987), (432, 48658), (864, 24329)]