17947853

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 23642112

約数和(自身を除く): 5694259

約数列:

[1, 7, 11, 31, 73, 77, 103, 217, 341, 511, 721, 803, 1133, 2263, 2387, 3193, 5621, 7519, 7931, 15841, 22351, 24893, 35123, 52633, 82709, 174251, 233089, 245861, 578963, 1631623, 2563979, 17947853]

約数ペア:

[(1, 17947853), (7, 2563979), (11, 1631623), (31, 578963), (73, 245861), (77, 233089), (103, 174251), (217, 82709), (341, 52633), (511, 35123), (721, 24893), (803, 22351), (1133, 15841), (2263, 7931), (2387, 7519), (3193, 5621)]