21328792

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140321}}^1$

素因数の和:140346

約数の個数: 16

約数和(自身を含む): 42096600

約数和(自身を除く): 20767808

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140321, 280642, 561284, 1122568, 2666099, 5332198, 10664396, 21328792]

約数ペア:

[(1, 21328792), (2, 10664396), (4, 5332198), (8, 2666099), (19, 1122568), (38, 561284), (76, 280642), (152, 140321)]