201721356

素因数分解:

$2^2\times 3^2\times {\mathrm{257}}^1\times {\mathrm{21803}}^1$

素因数の和:22070

約数の個数: 36

約数和(自身を含む): 511914312

約数和(自身を除く): 310192956

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 257, 514, 771, 1028, 1542, 2313, 3084, 4626, 9252, 21803, 43606, 65409, 87212, 130818, 196227, 261636, 392454, 784908, 5603371, 11206742, 16810113, 22413484, 33620226, 50430339, 67240452, 100860678, 201721356]

約数ペア:

[(1, 201721356), (2, 100860678), (3, 67240452), (4, 50430339), (6, 33620226), (9, 22413484), (12, 16810113), (18, 11206742), (36, 5603371), (257, 784908), (514, 392454), (771, 261636), (1028, 196227), (1542, 130818), (2313, 87212), (3084, 65409), (4626, 43606), (9252, 21803)]