20807778

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{1151}}^1$

素因数の和:1310

約数の個数: 32

約数和(自身を含む): 43794432

約数和(自身を除く): 22986654

約数列:

[1, 2, 3, 6, 23, 46, 69, 131, 138, 262, 393, 786, 1151, 2302, 3013, 3453, 6026, 6906, 9039, 18078, 26473, 52946, 79419, 150781, 158838, 301562, 452343, 904686, 3467963, 6935926, 10403889, 20807778]

約数ペア:

[(1, 20807778), (2, 10403889), (3, 6935926), (6, 3467963), (23, 904686), (46, 452343), (69, 301562), (131, 158838), (138, 150781), (262, 79419), (393, 52946), (786, 26473), (1151, 18078), (2302, 9039), (3013, 6906), (3453, 6026)]