21350340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:330

約数の個数: 144

約数和(自身を含む): 72648576

約数和(自身を除く): 51298236

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 41, 44, 45, 55, 60, 66, 82, 90, 99, 110, 123, 132, 164, 165, 180, 198, 205, 220, 246, 263, 330, 369, 396, 410, 451, 492, 495, 526, 615, 660, 738, 789, 820, 902, 990, 1052, 1230, 1315, 1353, 1476, 1578, 1804, 1845, 1980, 2255, 2367, 2460, 2630, 2706, 2893, 3156, 3690, 3945, 4059, 4510, 4734, 5260, 5412, 5786, 6765, 7380, 7890, 8118, 8679, 9020, 9468, 10783, 11572, 11835, 13530, 14465, 15780, 16236, 17358, 20295, 21566, 23670, 26037, 27060, 28930, 32349, 34716, 40590, 43132, 43395, 47340, 52074, 53915, 57860, 64698, 81180, 86790, 97047, 104148, 107830, 118613, 129396, 130185, 161745, 173580, 194094, 215660, 237226, 260370, 323490, 355839, 388188, 474452, 485235, 520740, 593065, 646980, 711678, 970470, 1067517, 1186130, 1423356, 1779195, 1940940, 2135034, 2372260, 3558390, 4270068, 5337585, 7116780, 10675170, 21350340]

約数ペア:

[(1, 21350340), (2, 10675170), (3, 7116780), (4, 5337585), (5, 4270068), (6, 3558390), (9, 2372260), (10, 2135034), (11, 1940940), (12, 1779195), (15, 1423356), (18, 1186130), (20, 1067517), (22, 970470), (30, 711678), (33, 646980), (36, 593065), (41, 520740), (44, 485235), (45, 474452), (55, 388188), (60, 355839), (66, 323490), (82, 260370), (90, 237226), (99, 215660), (110, 194094), (123, 173580), (132, 161745), (164, 130185), (165, 129396), (180, 118613), (198, 107830), (205, 104148), (220, 97047), (246, 86790), (263, 81180), (330, 64698), (369, 57860), (396, 53915), (410, 52074), (451, 47340), (492, 43395), (495, 43132), (526, 40590), (615, 34716), (660, 32349), (738, 28930), (789, 27060), (820, 26037), (902, 23670), (990, 21566), (1052, 20295), (1230, 17358), (1315, 16236), (1353, 15780), (1476, 14465), (1578, 13530), (1804, 11835), (1845, 11572), (1980, 10783), (2255, 9468), (2367, 9020), (2460, 8679), (2630, 8118), (2706, 7890), (2893, 7380), (3156, 6765), (3690, 5786), (3945, 5412), (4059, 5260), (4510, 4734)]