21818403

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{14177}}^1$

素因数の和:14208

約数の個数: 20

約数和(自身を含む): 34310760

約数和(自身を除く): 12492357

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 14177, 42531, 127593, 269363, 382779, 808089, 1148337, 2424267, 7272801, 21818403]

約数ペア:

[(1, 21818403), (3, 7272801), (9, 2424267), (19, 1148337), (27, 808089), (57, 382779), (81, 269363), (171, 127593), (513, 42531), (1539, 14177)]