20899424

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7177}}^1$

素因数の和:7207

約数の個数: 48

約数和(自身を含む): 50647968

約数和(自身を除く): 29748544

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 7177, 14354, 28708, 50239, 57416, 93301, 100478, 114832, 186602, 200956, 229664, 373204, 401912, 653107, 746408, 803824, 1306214, 1492816, 1607648, 2612428, 2985632, 5224856, 10449712, 20899424]

約数ペア:

[(1, 20899424), (2, 10449712), (4, 5224856), (7, 2985632), (8, 2612428), (13, 1607648), (14, 1492816), (16, 1306214), (26, 803824), (28, 746408), (32, 653107), (52, 401912), (56, 373204), (91, 229664), (104, 200956), (112, 186602), (182, 114832), (208, 100478), (224, 93301), (364, 57416), (416, 50239), (728, 28708), (1456, 14354), (2912, 7177)]