28121938

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1$

素因数の和:227

約数の個数: 48

約数和(自身を含む): 50068800

約数和(自身を除く): 21946862

約数列:

[1, 2, 13, 19, 26, 29, 38, 58, 151, 169, 247, 302, 338, 377, 494, 551, 754, 1102, 1963, 2869, 3211, 3926, 4379, 4901, 5738, 6422, 7163, 8758, 9802, 14326, 25519, 37297, 51038, 56927, 74594, 83201, 93119, 113854, 166402, 186238, 484861, 740051, 969722, 1081613, 1480102, 2163226, 14060969, 28121938]

約数ペア:

[(1, 28121938), (2, 14060969), (13, 2163226), (19, 1480102), (26, 1081613), (29, 969722), (38, 740051), (58, 484861), (151, 186238), (169, 166402), (247, 113854), (302, 93119), (338, 83201), (377, 74594), (494, 56927), (551, 51038), (754, 37297), (1102, 25519), (1963, 14326), (2869, 9802), (3211, 8758), (3926, 7163), (4379, 6422), (4901, 5738)]