21737220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:341

約数の個数: 96

約数和(自身を含む): 65390976

約数和(自身を除く): 43653756

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 101, 102, 170, 202, 204, 211, 255, 303, 340, 404, 422, 505, 510, 606, 633, 844, 1010, 1020, 1055, 1212, 1266, 1515, 1717, 2020, 2110, 2532, 3030, 3165, 3434, 3587, 4220, 5151, 6060, 6330, 6868, 7174, 8585, 10302, 10761, 12660, 14348, 17170, 17935, 20604, 21311, 21522, 25755, 34340, 35870, 42622, 43044, 51510, 53805, 63933, 71740, 85244, 103020, 106555, 107610, 127866, 213110, 215220, 255732, 319665, 362287, 426220, 639330, 724574, 1086861, 1278660, 1449148, 1811435, 2173722, 3622870, 4347444, 5434305, 7245740, 10868610, 21737220]

約数ペア:

[(1, 21737220), (2, 10868610), (3, 7245740), (4, 5434305), (5, 4347444), (6, 3622870), (10, 2173722), (12, 1811435), (15, 1449148), (17, 1278660), (20, 1086861), (30, 724574), (34, 639330), (51, 426220), (60, 362287), (68, 319665), (85, 255732), (101, 215220), (102, 213110), (170, 127866), (202, 107610), (204, 106555), (211, 103020), (255, 85244), (303, 71740), (340, 63933), (404, 53805), (422, 51510), (505, 43044), (510, 42622), (606, 35870), (633, 34340), (844, 25755), (1010, 21522), (1020, 21311), (1055, 20604), (1212, 17935), (1266, 17170), (1515, 14348), (1717, 12660), (2020, 10761), (2110, 10302), (2532, 8585), (3030, 7174), (3165, 6868), (3434, 6330), (3587, 6060), (4220, 5151)]