21983169

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{179}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 10917951

約数列:

[1, 3, 13, 39, 47, 67, 141, 179, 201, 537, 611, 871, 1833, 2327, 2613, 3149, 6981, 8413, 9447, 11993, 25239, 35979, 40937, 109369, 122811, 155909, 328107, 467727, 563671, 1691013, 7327723, 21983169]

約数ペア:

[(1, 21983169), (3, 7327723), (13, 1691013), (39, 563671), (47, 467727), (67, 328107), (141, 155909), (179, 122811), (201, 109369), (537, 40937), (611, 35979), (871, 25239), (1833, 11993), (2327, 9447), (2613, 8413), (3149, 6981)]