64638819

素因数分解:

$3^2\times 7^1\times {\mathrm{719}}^1\times {\mathrm{1427}}^1$

素因数の和:2159

約数の個数: 24

約数和(自身を含む): 106928640

約数和(自身を除く): 42289821

約数列:

[1, 3, 7, 9, 21, 63, 719, 1427, 2157, 4281, 5033, 6471, 9989, 12843, 15099, 29967, 45297, 89901, 1026013, 3078039, 7182091, 9234117, 21546273, 64638819]

約数ペア:

[(1, 64638819), (3, 21546273), (7, 9234117), (9, 7182091), (21, 3078039), (63, 1026013), (719, 89901), (1427, 45297), (2157, 29967), (4281, 15099), (5033, 12843), (6471, 9989)]