28741713

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{563}}^1$

素因数の和:614

約数の個数: 64

約数和(自身を含む): 54577152

約数和(自身を除く): 25835439

約数列:

[1, 3, 7, 11, 13, 17, 21, 33, 39, 51, 77, 91, 119, 143, 187, 221, 231, 273, 357, 429, 561, 563, 663, 1001, 1309, 1547, 1689, 2431, 3003, 3927, 3941, 4641, 6193, 7293, 7319, 9571, 11823, 17017, 18579, 21957, 28713, 43351, 51051, 51233, 66997, 80509, 105281, 124423, 130053, 153699, 200991, 241527, 315843, 373269, 563563, 736967, 870961, 1368653, 1690689, 2210901, 2612883, 4105959, 9580571, 28741713]

約数ペア:

[(1, 28741713), (3, 9580571), (7, 4105959), (11, 2612883), (13, 2210901), (17, 1690689), (21, 1368653), (33, 870961), (39, 736967), (51, 563563), (77, 373269), (91, 315843), (119, 241527), (143, 200991), (187, 153699), (221, 130053), (231, 124423), (273, 105281), (357, 80509), (429, 66997), (561, 51233), (563, 51051), (663, 43351), (1001, 28713), (1309, 21957), (1547, 18579), (1689, 17017), (2431, 11823), (3003, 9571), (3927, 7319), (3941, 7293), (4641, 6193)]