19874751

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{967}}^1$

素因数の和:1031

約数の個数: 32

約数和(自身を含む): 31223808

約数和(自身を除く): 11349057

約数列:

[1, 3, 13, 17, 31, 39, 51, 93, 221, 403, 527, 663, 967, 1209, 1581, 2901, 6851, 12571, 16439, 20553, 29977, 37713, 49317, 89931, 213707, 389701, 509609, 641121, 1169103, 1528827, 6624917, 19874751]

約数ペア:

[(1, 19874751), (3, 6624917), (13, 1528827), (17, 1169103), (31, 641121), (39, 509609), (51, 389701), (93, 213707), (221, 89931), (403, 49317), (527, 37713), (663, 29977), (967, 20553), (1209, 16439), (1581, 12571), (2901, 6851)]