21198660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2969}}^1$

素因数の和:3005

約数の個数: 96

約数和(自身を含む): 71850240

約数和(自身を除く): 50651580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 340, 357, 420, 476, 510, 595, 714, 1020, 1190, 1428, 1785, 2380, 2969, 3570, 5938, 7140, 8907, 11876, 14845, 17814, 20783, 29690, 35628, 41566, 44535, 50473, 59380, 62349, 83132, 89070, 100946, 103915, 124698, 151419, 178140, 201892, 207830, 249396, 252365, 302838, 311745, 353311, 415660, 504730, 605676, 623490, 706622, 757095, 1009460, 1059933, 1246980, 1413244, 1514190, 1766555, 2119866, 3028380, 3533110, 4239732, 5299665, 7066220, 10599330, 21198660]

約数ペア:

[(1, 21198660), (2, 10599330), (3, 7066220), (4, 5299665), (5, 4239732), (6, 3533110), (7, 3028380), (10, 2119866), (12, 1766555), (14, 1514190), (15, 1413244), (17, 1246980), (20, 1059933), (21, 1009460), (28, 757095), (30, 706622), (34, 623490), (35, 605676), (42, 504730), (51, 415660), (60, 353311), (68, 311745), (70, 302838), (84, 252365), (85, 249396), (102, 207830), (105, 201892), (119, 178140), (140, 151419), (170, 124698), (204, 103915), (210, 100946), (238, 89070), (255, 83132), (340, 62349), (357, 59380), (420, 50473), (476, 44535), (510, 41566), (595, 35628), (714, 29690), (1020, 20783), (1190, 17814), (1428, 14845), (1785, 11876), (2380, 8907), (2969, 7140), (3570, 5938)]