21269284

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{4177}}^1$

素因数の和:4267

約数の個数: 24

約数和(自身を含む): 39774560

約数和(自身を除く): 18505276

約数列:

[1, 2, 4, 19, 38, 67, 76, 134, 268, 1273, 2546, 4177, 5092, 8354, 16708, 79363, 158726, 279859, 317452, 559718, 1119436, 5317321, 10634642, 21269284]

約数ペア:

[(1, 21269284), (2, 10634642), (4, 5317321), (19, 1119436), (38, 559718), (67, 317452), (76, 279859), (134, 158726), (268, 79363), (1273, 16708), (2546, 8354), (4177, 5092)]