21190680

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2803}}^1$

素因数の和:2830

約数の個数: 128

約数和(自身を含む): 80755200

約数和(自身を除く): 59564520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 2803, 3780, 5606, 7560, 8409, 11212, 14015, 16818, 19621, 22424, 25227, 28030, 33636, 39242, 42045, 50454, 56060, 58863, 67272, 75681, 78484, 84090, 98105, 100908, 112120, 117726, 126135, 151362, 156968, 168180, 176589, 196210, 201816, 235452, 252270, 294315, 302724, 336360, 353178, 378405, 392420, 470904, 504540, 529767, 588630, 605448, 706356, 756810, 784840, 882945, 1009080, 1059534, 1177260, 1412712, 1513620, 1765890, 2119068, 2354520, 2648835, 3027240, 3531780, 4238136, 5297670, 7063560, 10595340, 21190680]

約数ペア:

[(1, 21190680), (2, 10595340), (3, 7063560), (4, 5297670), (5, 4238136), (6, 3531780), (7, 3027240), (8, 2648835), (9, 2354520), (10, 2119068), (12, 1765890), (14, 1513620), (15, 1412712), (18, 1177260), (20, 1059534), (21, 1009080), (24, 882945), (27, 784840), (28, 756810), (30, 706356), (35, 605448), (36, 588630), (40, 529767), (42, 504540), (45, 470904), (54, 392420), (56, 378405), (60, 353178), (63, 336360), (70, 302724), (72, 294315), (84, 252270), (90, 235452), (105, 201816), (108, 196210), (120, 176589), (126, 168180), (135, 156968), (140, 151362), (168, 126135), (180, 117726), (189, 112120), (210, 100908), (216, 98105), (252, 84090), (270, 78484), (280, 75681), (315, 67272), (360, 58863), (378, 56060), (420, 50454), (504, 42045), (540, 39242), (630, 33636), (756, 28030), (840, 25227), (945, 22424), (1080, 19621), (1260, 16818), (1512, 14015), (1890, 11212), (2520, 8409), (2803, 7560), (3780, 5606)]