221350239

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3499}}^1$

素因数の和:3593

約数の個数: 40

約数和(自身を含む): 365904000

約数和(自身を除く): 144553761

約数列:

[1, 3, 9, 11, 27, 33, 71, 81, 99, 213, 297, 639, 781, 891, 1917, 2343, 3499, 5751, 7029, 10497, 21087, 31491, 38489, 63261, 94473, 115467, 248429, 283419, 346401, 745287, 1039203, 2235861, 2732719, 3117609, 6707583, 8198157, 20122749, 24594471, 73783413, 221350239]

約数ペア:

[(1, 221350239), (3, 73783413), (9, 24594471), (11, 20122749), (27, 8198157), (33, 6707583), (71, 3117609), (81, 2732719), (99, 2235861), (213, 1039203), (297, 745287), (639, 346401), (781, 283419), (891, 248429), (1917, 115467), (2343, 94473), (3499, 63261), (5751, 38489), (7029, 31491), (10497, 21087)]