21479670

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:270

約数の個数: 96

約数和(自身を含む): 60147360

約数和(自身を除く): 38667690

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 101, 102, 139, 153, 170, 202, 255, 278, 303, 306, 417, 505, 510, 606, 695, 765, 834, 909, 1010, 1251, 1390, 1515, 1530, 1717, 1818, 2085, 2363, 2502, 3030, 3434, 4170, 4545, 4726, 5151, 6255, 7089, 8585, 9090, 10302, 11815, 12510, 14039, 14178, 15453, 17170, 21267, 23630, 25755, 28078, 30906, 35445, 42117, 42534, 51510, 70195, 70890, 77265, 84234, 106335, 126351, 140390, 154530, 210585, 212670, 238663, 252702, 421170, 477326, 631755, 715989, 1193315, 1263510, 1431978, 2147967, 2386630, 3579945, 4295934, 7159890, 10739835, 21479670]

約数ペア:

[(1, 21479670), (2, 10739835), (3, 7159890), (5, 4295934), (6, 3579945), (9, 2386630), (10, 2147967), (15, 1431978), (17, 1263510), (18, 1193315), (30, 715989), (34, 631755), (45, 477326), (51, 421170), (85, 252702), (90, 238663), (101, 212670), (102, 210585), (139, 154530), (153, 140390), (170, 126351), (202, 106335), (255, 84234), (278, 77265), (303, 70890), (306, 70195), (417, 51510), (505, 42534), (510, 42117), (606, 35445), (695, 30906), (765, 28078), (834, 25755), (909, 23630), (1010, 21267), (1251, 17170), (1390, 15453), (1515, 14178), (1530, 14039), (1717, 12510), (1818, 11815), (2085, 10302), (2363, 9090), (2502, 8585), (3030, 7089), (3434, 6255), (4170, 5151), (4545, 4726)]