20797504

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3571}}^1$

素因数の和:3603

約数の個数: 56

約数和(自身を含む): 50808128

約数和(自身を除く): 30010624

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 182, 208, 224, 364, 416, 448, 728, 832, 1456, 2912, 3571, 5824, 7142, 14284, 24997, 28568, 46423, 49994, 57136, 92846, 99988, 114272, 185692, 199976, 228544, 324961, 371384, 399952, 649922, 742768, 799904, 1299844, 1485536, 1599808, 2599688, 2971072, 5199376, 10398752, 20797504]

約数ペア:

[(1, 20797504), (2, 10398752), (4, 5199376), (7, 2971072), (8, 2599688), (13, 1599808), (14, 1485536), (16, 1299844), (26, 799904), (28, 742768), (32, 649922), (52, 399952), (56, 371384), (64, 324961), (91, 228544), (104, 199976), (112, 185692), (182, 114272), (208, 99988), (224, 92846), (364, 57136), (416, 49994), (448, 46423), (728, 28568), (832, 24997), (1456, 14284), (2912, 7142), (3571, 5824)]