21523827

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{937}}^1$

素因数の和:1003

約数の個数: 32

約数和(自身を含む): 33617920

約数和(自身を除く): 12094093

約数列:

[1, 3, 13, 19, 31, 39, 57, 93, 247, 403, 589, 741, 937, 1209, 1767, 2811, 7657, 12181, 17803, 22971, 29047, 36543, 53409, 87141, 231439, 377611, 551893, 694317, 1132833, 1655679, 7174609, 21523827]

約数ペア:

[(1, 21523827), (3, 7174609), (13, 1655679), (19, 1132833), (31, 694317), (39, 551893), (57, 377611), (93, 231439), (247, 87141), (403, 53409), (589, 36543), (741, 29047), (937, 22971), (1209, 17803), (1767, 12181), (2811, 7657)]