21084420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2953}}^1$

素因数の和:2989

約数の個数: 96

約数和(自身を含む): 71463168

約数和(自身を除く): 50378748

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, 2953, 3570, 5906, 7140, 8859, 11812, 14765, 17718, 20671, 29530, 35436, 41342, 44295, 50201, 59060, 62013, 82684, 88590, 100402, 103355, 124026, 150603, 177180, 200804, 206710, 248052, 251005, 301206, 310065, 351407, 413420, 502010, 602412, 620130, 702814, 753015, 1004020, 1054221, 1240260, 1405628, 1506030, 1757035, 2108442, 3012060, 3514070, 4216884, 5271105, 7028140, 10542210, 21084420]

約数ペア:

[(1, 21084420), (2, 10542210), (3, 7028140), (4, 5271105), (5, 4216884), (6, 3514070), (7, 3012060), (10, 2108442), (12, 1757035), (14, 1506030), (15, 1405628), (17, 1240260), (20, 1054221), (21, 1004020), (28, 753015), (30, 702814), (34, 620130), (35, 602412), (42, 502010), (51, 413420), (60, 351407), (68, 310065), (70, 301206), (84, 251005), (85, 248052), (102, 206710), (105, 200804), (119, 177180), (140, 150603), (170, 124026), (204, 103355), (210, 100402), (238, 88590), (255, 82684), (340, 62013), (357, 59060), (420, 50201), (476, 44295), (510, 41342), (595, 35436), (714, 29530), (1020, 20671), (1190, 17718), (1428, 14765), (1785, 11812), (2380, 8859), (2953, 7140), (3570, 5906)]