21898690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{877}}^1$

素因数の和:1122

約数の個数: 32

約数和(自身を含む): 43239744

約数和(自身を除く): 21341054

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 227, 454, 877, 1135, 1754, 2270, 2497, 4385, 4994, 8770, 9647, 12485, 19294, 24970, 48235, 96470, 199079, 398158, 995395, 1990790, 2189869, 4379738, 10949345, 21898690]

約数ペア:

[(1, 21898690), (2, 10949345), (5, 4379738), (10, 2189869), (11, 1990790), (22, 995395), (55, 398158), (110, 199079), (227, 96470), (454, 48235), (877, 24970), (1135, 19294), (1754, 12485), (2270, 9647), (2497, 8770), (4385, 4994)]