21202974

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{251}}^1$

素因数の和:310

約数の個数: 72

約数和(自身を含む): 52422552

約数和(自身を除く): 31219578

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 38, 39, 57, 78, 114, 117, 171, 234, 247, 251, 342, 361, 494, 502, 722, 741, 753, 1083, 1482, 1506, 2166, 2223, 2259, 3249, 3263, 4446, 4518, 4693, 4769, 6498, 6526, 9386, 9538, 9789, 14079, 14307, 19578, 28158, 28614, 29367, 42237, 42921, 58734, 61997, 84474, 85842, 90611, 123994, 181222, 185991, 271833, 371982, 543666, 557973, 815499, 1115946, 1177943, 1630998, 2355886, 3533829, 7067658, 10601487, 21202974]

約数ペア:

[(1, 21202974), (2, 10601487), (3, 7067658), (6, 3533829), (9, 2355886), (13, 1630998), (18, 1177943), (19, 1115946), (26, 815499), (38, 557973), (39, 543666), (57, 371982), (78, 271833), (114, 185991), (117, 181222), (171, 123994), (234, 90611), (247, 85842), (251, 84474), (342, 61997), (361, 58734), (494, 42921), (502, 42237), (722, 29367), (741, 28614), (753, 28158), (1083, 19578), (1482, 14307), (1506, 14079), (2166, 9789), (2223, 9538), (2259, 9386), (3249, 6526), (3263, 6498), (4446, 4769), (4518, 4693)]