20897688

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2347}}^1$

素因数の和:2416

約数の個数: 64

約数和(自身を含む): 60860160

約数和(自身を除く): 39962472

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 53, 56, 84, 106, 159, 168, 212, 318, 371, 424, 636, 742, 1113, 1272, 1484, 2226, 2347, 2968, 4452, 4694, 7041, 8904, 9388, 14082, 16429, 18776, 28164, 32858, 49287, 56328, 65716, 98574, 124391, 131432, 197148, 248782, 373173, 394296, 497564, 746346, 870737, 995128, 1492692, 1741474, 2612211, 2985384, 3482948, 5224422, 6965896, 10448844, 20897688]

約数ペア:

[(1, 20897688), (2, 10448844), (3, 6965896), (4, 5224422), (6, 3482948), (7, 2985384), (8, 2612211), (12, 1741474), (14, 1492692), (21, 995128), (24, 870737), (28, 746346), (42, 497564), (53, 394296), (56, 373173), (84, 248782), (106, 197148), (159, 131432), (168, 124391), (212, 98574), (318, 65716), (371, 56328), (424, 49287), (636, 32858), (742, 28164), (1113, 18776), (1272, 16429), (1484, 14082), (2226, 9388), (2347, 8904), (2968, 7041), (4452, 4694)]