18616982

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:260

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 11795818

約数列:

[1, 2, 23, 46, 47, 79, 94, 109, 158, 218, 1081, 1817, 2162, 2507, 3634, 3713, 5014, 5123, 7426, 8611, 10246, 17222, 85399, 117829, 170798, 198053, 235658, 396106, 404717, 809434, 9308491, 18616982]

約数ペア:

[(1, 18616982), (2, 9308491), (23, 809434), (46, 404717), (47, 396106), (79, 235658), (94, 198053), (109, 170798), (158, 117829), (218, 85399), (1081, 17222), (1817, 10246), (2162, 8611), (2507, 7426), (3634, 5123), (3713, 5014)]