21000403654

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{72047}}^1\times {\mathrm{8573}}^1$

素因数の和:80639

約数の個数: 16

約数和(自身を含む): 33357935808

約数和(自身を除く): 12357532154

約数列:

[1, 2, 17, 34, 8573, 17146, 72047, 144094, 145741, 291482, 1224799, 2449598, 617658931, 1235317862, 10500201827, 21000403654]

約数ペア:

[(1, 21000403654), (2, 10500201827), (17, 1235317862), (34, 617658931), (8573, 2449598), (17146, 1224799), (72047, 291482), (144094, 145741)]