20961567410

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2251511}}^1$

素因数の和:2251551

約数の個数: 48

約数和(自身を含む): 46201026240

約数和(自身を除く): 25239458830

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 245, 266, 490, 665, 931, 1330, 1862, 4655, 9310, 2251511, 4503022, 11257555, 15760577, 22515110, 31521154, 42778709, 78802885, 85557418, 110324039, 157605770, 213893545, 220648078, 299450963, 427787090, 551620195, 598901926, 1103240390, 1497254815, 2096156741, 2994509630, 4192313482, 10480783705, 20961567410]

約数ペア:

[(1, 20961567410), (2, 10480783705), (5, 4192313482), (7, 2994509630), (10, 2096156741), (14, 1497254815), (19, 1103240390), (35, 598901926), (38, 551620195), (49, 427787090), (70, 299450963), (95, 220648078), (98, 213893545), (133, 157605770), (190, 110324039), (245, 85557418), (266, 78802885), (490, 42778709), (665, 31521154), (931, 22515110), (1330, 15760577), (1862, 11257555), (4655, 4503022), (9310, 2251511)]