21249111

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 31808448

約数和(自身を除く): 10559337

約数列:

[1, 3, 13, 39, 41, 97, 123, 137, 291, 411, 533, 1261, 1599, 1781, 3783, 3977, 5343, 5617, 11931, 13289, 16851, 39867, 51701, 73021, 155103, 172757, 219063, 518271, 544849, 1634547, 7083037, 21249111]

約数ペア:

[(1, 21249111), (3, 7083037), (13, 1634547), (39, 544849), (41, 518271), (97, 219063), (123, 172757), (137, 155103), (291, 73021), (411, 51701), (533, 39867), (1261, 16851), (1599, 13289), (1781, 11931), (3783, 5617), (3977, 5343)]