21204608

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{8719}}^1$

素因数の和:8752

約数の個数: 32

約数和(自身を含む): 44472000

約数和(自身を除く): 23267392

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 608, 1216, 2432, 8719, 17438, 34876, 69752, 139504, 165661, 279008, 331322, 558016, 662644, 1116032, 1325288, 2650576, 5301152, 10602304, 21204608]

約数ペア:

[(1, 21204608), (2, 10602304), (4, 5301152), (8, 2650576), (16, 1325288), (19, 1116032), (32, 662644), (38, 558016), (64, 331322), (76, 279008), (128, 165661), (152, 139504), (304, 69752), (608, 34876), (1216, 17438), (2432, 8719)]