27978447

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{719}}^1$

素因数の和:855

約数の個数: 32

約数和(自身を含む): 45619200

約数和(自身を除く): 17640753

約数列:

[1, 3, 7, 17, 21, 51, 109, 119, 327, 357, 719, 763, 1853, 2157, 2289, 5033, 5559, 12223, 12971, 15099, 36669, 38913, 78371, 85561, 235113, 256683, 548597, 1332307, 1645791, 3996921, 9326149, 27978447]

約数ペア:

[(1, 27978447), (3, 9326149), (7, 3996921), (17, 1645791), (21, 1332307), (51, 548597), (109, 256683), (119, 235113), (327, 85561), (357, 78371), (719, 38913), (763, 36669), (1853, 15099), (2157, 12971), (2289, 12223), (5033, 5559)]