20051823

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1153}}^1$

素因数の和:1215

約数の個数: 32

約数和(自身を含む): 31905792

約数和(自身を除く): 11853969

約数列:

[1, 3, 11, 17, 31, 33, 51, 93, 187, 341, 527, 561, 1023, 1153, 1581, 3459, 5797, 12683, 17391, 19601, 35743, 38049, 58803, 107229, 215611, 393173, 607631, 646833, 1179519, 1822893, 6683941, 20051823]

約数ペア:

[(1, 20051823), (3, 6683941), (11, 1822893), (17, 1179519), (31, 646833), (33, 607631), (51, 393173), (93, 215611), (187, 107229), (341, 58803), (527, 38049), (561, 35743), (1023, 19601), (1153, 17391), (1581, 12683), (3459, 5797)]