20661318

素因数分解:

$2^1\times 3^6\times {\mathrm{37}}^1\times {\mathrm{383}}^1$

素因数の和:440

約数の個数: 56

約数和(自身を含む): 47847168

約数和(自身を除く): 27185850

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 81, 111, 162, 222, 243, 333, 383, 486, 666, 729, 766, 999, 1149, 1458, 1998, 2298, 2997, 3447, 5994, 6894, 8991, 10341, 14171, 17982, 20682, 26973, 28342, 31023, 42513, 53946, 62046, 85026, 93069, 127539, 186138, 255078, 279207, 382617, 558414, 765234, 1147851, 2295702, 3443553, 6887106, 10330659, 20661318]

約数ペア:

[(1, 20661318), (2, 10330659), (3, 6887106), (6, 3443553), (9, 2295702), (18, 1147851), (27, 765234), (37, 558414), (54, 382617), (74, 279207), (81, 255078), (111, 186138), (162, 127539), (222, 93069), (243, 85026), (333, 62046), (383, 53946), (486, 42513), (666, 31023), (729, 28342), (766, 26973), (999, 20682), (1149, 17982), (1458, 14171), (1998, 10341), (2298, 8991), (2997, 6894), (3447, 5994)]