215947977

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1\times {\mathrm{1451}}^1$

素因数の和:1853

約数の個数: 32

約数和(自身を含む): 347550720

約数和(自身を除く): 131602743

約数列:

[1, 3, 7, 19, 21, 57, 133, 373, 399, 1119, 1451, 2611, 4353, 7087, 7833, 10157, 21261, 27569, 30471, 49609, 82707, 148827, 192983, 541223, 578949, 1623669, 3788561, 10283237, 11365683, 30849711, 71982659, 215947977]

約数ペア:

[(1, 215947977), (3, 71982659), (7, 30849711), (19, 11365683), (21, 10283237), (57, 3788561), (133, 1623669), (373, 578949), (399, 541223), (1119, 192983), (1451, 148827), (2611, 82707), (4353, 49609), (7087, 30471), (7833, 27569), (10157, 21261)]