21234876

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4391}}^1$

素因数の和:4442

約数の個数: 48

約数和(自身を含む): 55093248

約数和(自身を除く): 33858372

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 186, 372, 403, 806, 1209, 1612, 2418, 4391, 4836, 8782, 13173, 17564, 26346, 52692, 57083, 114166, 136121, 171249, 228332, 272242, 342498, 408363, 544484, 684996, 816726, 1633452, 1769573, 3539146, 5308719, 7078292, 10617438, 21234876]

約数ペア:

[(1, 21234876), (2, 10617438), (3, 7078292), (4, 5308719), (6, 3539146), (12, 1769573), (13, 1633452), (26, 816726), (31, 684996), (39, 544484), (52, 408363), (62, 342498), (78, 272242), (93, 228332), (124, 171249), (156, 136121), (186, 114166), (372, 57083), (403, 52692), (806, 26346), (1209, 17564), (1612, 13173), (2418, 8782), (4391, 4836)]