21516030

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:383

約数の個数: 80

約数和(自身を含む): 58649184

約数和(自身を除く): 37133154

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 101, 135, 162, 202, 263, 270, 303, 405, 505, 526, 606, 789, 810, 909, 1010, 1315, 1515, 1578, 1818, 2367, 2630, 2727, 3030, 3945, 4545, 4734, 5454, 7101, 7890, 8181, 9090, 11835, 13635, 14202, 16362, 21303, 23670, 26563, 27270, 35505, 40905, 42606, 53126, 71010, 79689, 81810, 106515, 132815, 159378, 213030, 239067, 265630, 398445, 478134, 717201, 796890, 1195335, 1434402, 2151603, 2390670, 3586005, 4303206, 7172010, 10758015, 21516030]

約数ペア:

[(1, 21516030), (2, 10758015), (3, 7172010), (5, 4303206), (6, 3586005), (9, 2390670), (10, 2151603), (15, 1434402), (18, 1195335), (27, 796890), (30, 717201), (45, 478134), (54, 398445), (81, 265630), (90, 239067), (101, 213030), (135, 159378), (162, 132815), (202, 106515), (263, 81810), (270, 79689), (303, 71010), (405, 53126), (505, 42606), (526, 40905), (606, 35505), (789, 27270), (810, 26563), (909, 23670), (1010, 21303), (1315, 16362), (1515, 14202), (1578, 13635), (1818, 11835), (2367, 9090), (2630, 8181), (2727, 7890), (3030, 7101), (3945, 5454), (4545, 4734)]