21804064

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{269}}^1$

素因数の和:445

約数の個数: 48

約数和(自身を含む): 45927000

約数和(自身を除く): 24122936

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 149, 269, 272, 298, 538, 544, 596, 1076, 1192, 2152, 2384, 2533, 4304, 4573, 4768, 5066, 8608, 9146, 10132, 18292, 20264, 36584, 40081, 40528, 73168, 80162, 81056, 146336, 160324, 320648, 641296, 681377, 1282592, 1362754, 2725508, 5451016, 10902032, 21804064]

約数ペア:

[(1, 21804064), (2, 10902032), (4, 5451016), (8, 2725508), (16, 1362754), (17, 1282592), (32, 681377), (34, 641296), (68, 320648), (136, 160324), (149, 146336), (269, 81056), (272, 80162), (298, 73168), (538, 40528), (544, 40081), (596, 36584), (1076, 20264), (1192, 18292), (2152, 10132), (2384, 9146), (2533, 8608), (4304, 5066), (4573, 4768)]