281386749

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1\times {\mathrm{1061}}^1$

素因数の和:1317

約数の個数: 32

約数和(自身を含む): 437577984

約数和(自身を除く): 156191235

約数列:

[1, 3, 7, 21, 73, 173, 219, 511, 519, 1061, 1211, 1533, 3183, 3633, 7427, 12629, 22281, 37887, 77453, 88403, 183553, 232359, 265209, 542171, 550659, 1284871, 1626513, 3854613, 13399369, 40198107, 93795583, 281386749]

約数ペア:

[(1, 281386749), (3, 93795583), (7, 40198107), (21, 13399369), (73, 3854613), (173, 1626513), (219, 1284871), (511, 550659), (519, 542171), (1061, 265209), (1211, 232359), (1533, 183553), (3183, 88403), (3633, 77453), (7427, 37887), (12629, 22281)]