17980365

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 34191360

約数和(自身を除く): 16210995

約数列:

[1, 3, 5, 13, 15, 19, 23, 39, 57, 65, 69, 95, 115, 195, 211, 247, 285, 299, 345, 437, 633, 741, 897, 1055, 1235, 1311, 1495, 2185, 2743, 3165, 3705, 4009, 4485, 4853, 5681, 6555, 8229, 12027, 13715, 14559, 17043, 20045, 24265, 28405, 41145, 52117, 60135, 63089, 72795, 85215, 92207, 156351, 189267, 260585, 276621, 315445, 461035, 781755, 946335, 1198691, 1383105, 3596073, 5993455, 17980365]

約数ペア:

[(1, 17980365), (3, 5993455), (5, 3596073), (13, 1383105), (15, 1198691), (19, 946335), (23, 781755), (39, 461035), (57, 315445), (65, 276621), (69, 260585), (95, 189267), (115, 156351), (195, 92207), (211, 85215), (247, 72795), (285, 63089), (299, 60135), (345, 52117), (437, 41145), (633, 28405), (741, 24265), (897, 20045), (1055, 17043), (1235, 14559), (1311, 13715), (1495, 12027), (2185, 8229), (2743, 6555), (3165, 5681), (3705, 4853), (4009, 4485)]