21303969

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{379}}^1\times {\mathrm{457}}^1$

素因数の和:880

約数の個数: 16

約数和(自身を含む): 29238720

約数和(自身を除く): 7934751

約数列:

[1, 3, 41, 123, 379, 457, 1137, 1371, 15539, 18737, 46617, 56211, 173203, 519609, 7101323, 21303969]

約数ペア:

[(1, 21303969), (3, 7101323), (41, 519609), (123, 173203), (379, 56211), (457, 46617), (1137, 18737), (1371, 15539)]