81490203

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 127876320

約数和(自身を除く): 46386117

約数列:

[1, 3, 9, 29, 43, 53, 87, 129, 137, 159, 261, 387, 411, 477, 1233, 1247, 1537, 2279, 3741, 3973, 4611, 5891, 6837, 7261, 11223, 11919, 13833, 17673, 20511, 21783, 35757, 53019, 65349, 66091, 170839, 198273, 210569, 312223, 512517, 594819, 631707, 936669, 1537551, 1895121, 2810007, 9054467, 27163401, 81490203]

約数ペア:

[(1, 81490203), (3, 27163401), (9, 9054467), (29, 2810007), (43, 1895121), (53, 1537551), (87, 936669), (129, 631707), (137, 594819), (159, 512517), (261, 312223), (387, 210569), (411, 198273), (477, 170839), (1233, 66091), (1247, 65349), (1537, 53019), (2279, 35757), (3741, 21783), (3973, 20511), (4611, 17673), (5891, 13833), (6837, 11919), (7261, 11223)]