21223455

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{439}}^1$

素因数の和:751

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 16032225

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 293, 439, 879, 1317, 1465, 2195, 3223, 4395, 4829, 6585, 9669, 14487, 16115, 24145, 48345, 72435, 128627, 385881, 643135, 1414897, 1929405, 4244691, 7074485, 21223455]

約数ペア:

[(1, 21223455), (3, 7074485), (5, 4244691), (11, 1929405), (15, 1414897), (33, 643135), (55, 385881), (165, 128627), (293, 72435), (439, 48345), (879, 24145), (1317, 16115), (1465, 14487), (2195, 9669), (3223, 6585), (4395, 4829)]