21099234

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{619}}^1$

素因数の和:679

約数の個数: 64

約数和(自身を含む): 49996800

約数和(自身を除く): 28897566

約数列:

[1, 2, 3, 6, 13, 19, 23, 26, 38, 39, 46, 57, 69, 78, 114, 138, 247, 299, 437, 494, 598, 619, 741, 874, 897, 1238, 1311, 1482, 1794, 1857, 2622, 3714, 5681, 8047, 11362, 11761, 14237, 16094, 17043, 23522, 24141, 28474, 34086, 35283, 42711, 48282, 70566, 85422, 152893, 185081, 270503, 305786, 370162, 458679, 541006, 555243, 811509, 917358, 1110486, 1623018, 3516539, 7033078, 10549617, 21099234]

約数ペア:

[(1, 21099234), (2, 10549617), (3, 7033078), (6, 3516539), (13, 1623018), (19, 1110486), (23, 917358), (26, 811509), (38, 555243), (39, 541006), (46, 458679), (57, 370162), (69, 305786), (78, 270503), (114, 185081), (138, 152893), (247, 85422), (299, 70566), (437, 48282), (494, 42711), (598, 35283), (619, 34086), (741, 28474), (874, 24141), (897, 23522), (1238, 17043), (1311, 16094), (1482, 14237), (1794, 11761), (1857, 11362), (2622, 8047), (3714, 5681)]