21131616

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{20011}}^1$

素因数の和:20035

約数の個数: 48

約数和(自身を含む): 60516288

約数和(自身を除く): 39384672

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 66, 88, 96, 132, 176, 264, 352, 528, 1056, 20011, 40022, 60033, 80044, 120066, 160088, 220121, 240132, 320176, 440242, 480264, 640352, 660363, 880484, 960528, 1320726, 1760968, 1921056, 2641452, 3521936, 5282904, 7043872, 10565808, 21131616]

約数ペア:

[(1, 21131616), (2, 10565808), (3, 7043872), (4, 5282904), (6, 3521936), (8, 2641452), (11, 1921056), (12, 1760968), (16, 1320726), (22, 960528), (24, 880484), (32, 660363), (33, 640352), (44, 480264), (48, 440242), (66, 320176), (88, 240132), (96, 220121), (132, 160088), (176, 120066), (264, 80044), (352, 60033), (528, 40022), (1056, 20011)]