81591994

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:291

約数の個数: 48

約数和(自身を含む): 142720704

約数和(自身を除く): 61128710

約数列:

[1, 2, 11, 22, 23, 46, 107, 121, 137, 214, 242, 253, 274, 506, 1177, 1507, 2354, 2461, 2783, 3014, 3151, 4922, 5566, 6302, 12947, 14659, 16577, 25894, 27071, 29318, 33154, 34661, 54142, 69322, 161249, 297781, 322498, 337157, 381271, 595562, 674314, 762542, 1773739, 3547478, 3708727, 7417454, 40795997, 81591994]

約数ペア:

[(1, 81591994), (2, 40795997), (11, 7417454), (22, 3708727), (23, 3547478), (46, 1773739), (107, 762542), (121, 674314), (137, 595562), (214, 381271), (242, 337157), (253, 322498), (274, 297781), (506, 161249), (1177, 69322), (1507, 54142), (2354, 34661), (2461, 33154), (2783, 29318), (3014, 27071), (3151, 25894), (4922, 16577), (5566, 14659), (6302, 12947)]