21897603

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{26737}}^1$

素因数の和:26763

約数の個数: 24

約数和(自身を含む): 38930528

約数和(自身を除く): 17032925

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 26737, 80211, 187159, 240633, 347581, 561477, 1042743, 1684431, 2433067, 3128229, 7299201, 21897603]

約数ペア:

[(1, 21897603), (3, 7299201), (7, 3128229), (9, 2433067), (13, 1684431), (21, 1042743), (39, 561477), (63, 347581), (91, 240633), (117, 187159), (273, 80211), (819, 26737)]