21200312

素因数分解:

$2^3\times 7^1\times {\mathrm{347}}^1\times {\mathrm{1091}}^1$

素因数の和:1451

約数の個数: 32

約数和(自身を含む): 45601920

約数和(自身を除く): 24401608

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 347, 694, 1091, 1388, 2182, 2429, 2776, 4364, 4858, 7637, 8728, 9716, 15274, 19432, 30548, 61096, 378577, 757154, 1514308, 2650039, 3028616, 5300078, 10600156, 21200312]

約数ペア:

[(1, 21200312), (2, 10600156), (4, 5300078), (7, 3028616), (8, 2650039), (14, 1514308), (28, 757154), (56, 378577), (347, 61096), (694, 30548), (1091, 19432), (1388, 15274), (2182, 9716), (2429, 8728), (2776, 7637), (4364, 4858)]