21784290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{263}}^1$

素因数の和:535

約数の個数: 64

約数和(自身を含む): 57480192

約数和(自身を除く): 35695902

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 251, 263, 330, 502, 526, 753, 789, 1255, 1315, 1506, 1578, 2510, 2630, 2761, 2893, 3765, 3945, 5522, 5786, 7530, 7890, 8283, 8679, 13805, 14465, 16566, 17358, 27610, 28930, 41415, 43395, 66013, 82830, 86790, 132026, 198039, 330065, 396078, 660130, 726143, 990195, 1452286, 1980390, 2178429, 3630715, 4356858, 7261430, 10892145, 21784290]

約数ペア:

[(1, 21784290), (2, 10892145), (3, 7261430), (5, 4356858), (6, 3630715), (10, 2178429), (11, 1980390), (15, 1452286), (22, 990195), (30, 726143), (33, 660130), (55, 396078), (66, 330065), (110, 198039), (165, 132026), (251, 86790), (263, 82830), (330, 66013), (502, 43395), (526, 41415), (753, 28930), (789, 27610), (1255, 17358), (1315, 16566), (1506, 14465), (1578, 13805), (2510, 8679), (2630, 8283), (2761, 7890), (2893, 7530), (3765, 5786), (3945, 5522)]