20889284

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21143}}^1$

素因数の和:21179

約数の個数: 24

約数和(自身を含む): 41442240

約数和(自身を除く): 20552956

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 21143, 42286, 84572, 274859, 401717, 549718, 803434, 1099436, 1606868, 5222321, 10444642, 20889284]

約数ペア:

[(1, 20889284), (2, 10444642), (4, 5222321), (13, 1606868), (19, 1099436), (26, 803434), (38, 549718), (52, 401717), (76, 274859), (247, 84572), (494, 42286), (988, 21143)]