217465287

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{4091}}^1$

素因数の和:4183

約数の個数: 32

約数和(自身を含む): 329978880

約数和(自身を除く): 112513593

約数列:

[1, 3, 13, 29, 39, 47, 87, 141, 377, 611, 1131, 1363, 1833, 4089, 4091, 12273, 17719, 53157, 53183, 118639, 159549, 192277, 355917, 576831, 1542307, 2499601, 4626921, 5576033, 7498803, 16728099, 72488429, 217465287]

約数ペア:

[(1, 217465287), (3, 72488429), (13, 16728099), (29, 7498803), (39, 5576033), (47, 4626921), (87, 2499601), (141, 1542307), (377, 576831), (611, 355917), (1131, 192277), (1363, 159549), (1833, 118639), (4089, 53183), (4091, 53157), (12273, 17719)]