21289230

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{8761}}^1$

素因数の和:8783

約数の個数: 48

約数和(自身を含む): 57408624

約数和(自身を除く): 36119394

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 8761, 17522, 26283, 43805, 52566, 78849, 87610, 131415, 157698, 236547, 262830, 394245, 473094, 709641, 788490, 1182735, 1419282, 2128923, 2365470, 3548205, 4257846, 7096410, 10644615, 21289230]

約数ペア:

[(1, 21289230), (2, 10644615), (3, 7096410), (5, 4257846), (6, 3548205), (9, 2365470), (10, 2128923), (15, 1419282), (18, 1182735), (27, 788490), (30, 709641), (45, 473094), (54, 394245), (81, 262830), (90, 236547), (135, 157698), (162, 131415), (243, 87610), (270, 78849), (405, 52566), (486, 43805), (810, 26283), (1215, 17522), (2430, 8761)]