19968345

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{179}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 36279360

約数和(自身を除く): 16311015

約数列:

[1, 3, 5, 9, 15, 37, 45, 67, 111, 179, 185, 201, 333, 335, 537, 555, 603, 895, 1005, 1611, 1665, 2479, 2685, 3015, 6623, 7437, 8055, 11993, 12395, 19869, 22311, 33115, 35979, 37185, 59607, 59965, 99345, 107937, 111555, 179895, 298035, 443741, 539685, 1331223, 2218705, 3993669, 6656115, 19968345]

約数ペア:

[(1, 19968345), (3, 6656115), (5, 3993669), (9, 2218705), (15, 1331223), (37, 539685), (45, 443741), (67, 298035), (111, 179895), (179, 111555), (185, 107937), (201, 99345), (333, 59965), (335, 59607), (537, 37185), (555, 35979), (603, 33115), (895, 22311), (1005, 19869), (1611, 12395), (1665, 11993), (2479, 8055), (2685, 7437), (3015, 6623)]