28245609

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3371}}^1$

素因数の和:3410

約数の個数: 36

約数和(自身を含む): 49973040

約数和(自身を除く): 21727431

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2793, 3371, 8379, 10113, 23597, 30339, 64049, 70791, 165179, 192147, 212373, 448343, 495537, 576441, 1345029, 1486611, 3138401, 4035087, 9415203, 28245609]

約数ペア:

[(1, 28245609), (3, 9415203), (7, 4035087), (9, 3138401), (19, 1486611), (21, 1345029), (49, 576441), (57, 495537), (63, 448343), (133, 212373), (147, 192147), (171, 165179), (399, 70791), (441, 64049), (931, 30339), (1197, 23597), (2793, 10113), (3371, 8379)]