216881613

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{379}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 348013120

約数和(自身を除く): 131131507

約数列:

[1, 3, 9, 13, 39, 67, 73, 117, 201, 219, 379, 603, 657, 871, 949, 1137, 2613, 2847, 3411, 4891, 4927, 7839, 8541, 14673, 14781, 25393, 27667, 44019, 44343, 63583, 76179, 83001, 190749, 228537, 249003, 330109, 359671, 572247, 990327, 1079013, 1853689, 2970981, 3237039, 5561067, 16683201, 24097957, 72293871, 216881613]

約数ペア:

[(1, 216881613), (3, 72293871), (9, 24097957), (13, 16683201), (39, 5561067), (67, 3237039), (73, 2970981), (117, 1853689), (201, 1079013), (219, 990327), (379, 572247), (603, 359671), (657, 330109), (871, 249003), (949, 228537), (1137, 190749), (2613, 83001), (2847, 76179), (3411, 63583), (4891, 44343), (4927, 44019), (7839, 27667), (8541, 25393), (14673, 14781)]