21225356

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{14699}}^1$

素因数の和:14741

約数の個数: 18

約数和(自身を含む): 39204900

約数和(自身を除く): 17979544

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 14699, 29398, 58796, 279281, 558562, 1117124, 5306339, 10612678, 21225356]

約数ペア:

[(1, 21225356), (2, 10612678), (4, 5306339), (19, 1117124), (38, 558562), (76, 279281), (361, 58796), (722, 29398), (1444, 14699)]