28508613

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 44977152

約数和(自身を除く): 16468539

約数列:

[1, 3, 7, 21, 43, 129, 131, 241, 301, 393, 723, 903, 917, 1687, 2751, 5061, 5633, 10363, 16899, 31089, 31571, 39431, 72541, 94713, 118293, 217623, 220997, 662991, 1357553, 4072659, 9502871, 28508613]

約数ペア:

[(1, 28508613), (3, 9502871), (7, 4072659), (21, 1357553), (43, 662991), (129, 220997), (131, 217623), (241, 118293), (301, 94713), (393, 72541), (723, 39431), (903, 31571), (917, 31089), (1687, 16899), (2751, 10363), (5061, 5633)]