87889977

素因数分解:

$3^2\times 7^3\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:499

約数の個数: 48

約数和(自身を含む): 150508800

約数和(自身を除く): 62618823

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 147, 213, 343, 401, 441, 497, 639, 1029, 1203, 1491, 2807, 3087, 3479, 3609, 4473, 8421, 10437, 19649, 24353, 25263, 28471, 31311, 58947, 73059, 85413, 137543, 176841, 199297, 219177, 256239, 412629, 597891, 1237887, 1395079, 1793673, 4185237, 9765553, 12555711, 29296659, 87889977]

約数ペア:

[(1, 87889977), (3, 29296659), (7, 12555711), (9, 9765553), (21, 4185237), (49, 1793673), (63, 1395079), (71, 1237887), (147, 597891), (213, 412629), (343, 256239), (401, 219177), (441, 199297), (497, 176841), (639, 137543), (1029, 85413), (1203, 73059), (1491, 58947), (2807, 31311), (3087, 28471), (3479, 25263), (3609, 24353), (4473, 19649), (8421, 10437)]