31871763

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 59920224

約数和(自身を除く): 28048461

約数列:

[1, 3, 7, 9, 11, 21, 33, 37, 63, 77, 99, 111, 113, 121, 231, 259, 333, 339, 363, 407, 693, 777, 791, 847, 1017, 1089, 1221, 1243, 2331, 2373, 2541, 2849, 3663, 3729, 4181, 4477, 7119, 7623, 8547, 8701, 11187, 12543, 13431, 13673, 25641, 26103, 29267, 31339, 37629, 40293, 41019, 45991, 78309, 87801, 94017, 95711, 123057, 137973, 263403, 282051, 287133, 321937, 413919, 505901, 861399, 965811, 1517703, 2897433, 3541307, 4553109, 10623921, 31871763]

約数ペア:

[(1, 31871763), (3, 10623921), (7, 4553109), (9, 3541307), (11, 2897433), (21, 1517703), (33, 965811), (37, 861399), (63, 505901), (77, 413919), (99, 321937), (111, 287133), (113, 282051), (121, 263403), (231, 137973), (259, 123057), (333, 95711), (339, 94017), (363, 87801), (407, 78309), (693, 45991), (777, 41019), (791, 40293), (847, 37629), (1017, 31339), (1089, 29267), (1221, 26103), (1243, 25641), (2331, 13673), (2373, 13431), (2541, 12543), (2849, 11187), (3663, 8701), (3729, 8547), (4181, 7623), (4477, 7119)]