18064972

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{947}}^1$

素因数の和:1221

約数の個数: 24

約数和(自身を含む): 33445440

約数和(自身を除く): 15380468

約数列:

[1, 2, 4, 19, 38, 76, 251, 502, 947, 1004, 1894, 3788, 4769, 9538, 17993, 19076, 35986, 71972, 237697, 475394, 950788, 4516243, 9032486, 18064972]

約数ペア:

[(1, 18064972), (2, 9032486), (4, 4516243), (19, 950788), (38, 475394), (76, 237697), (251, 71972), (502, 35986), (947, 19076), (1004, 17993), (1894, 9538), (3788, 4769)]