251330751

素因数分解:

$3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:341

約数の個数: 72

約数和(自身を含む): 441742704

約数和(自身を除く): 190411953

約数列:

[1, 3, 7, 9, 21, 37, 49, 63, 73, 111, 147, 211, 219, 259, 333, 441, 511, 633, 657, 777, 1477, 1533, 1813, 1899, 2331, 2701, 3577, 4431, 4599, 5439, 7807, 8103, 10339, 10731, 13293, 15403, 16317, 18907, 23421, 24309, 31017, 32193, 46209, 54649, 56721, 70263, 93051, 107821, 132349, 138627, 163947, 170163, 323463, 382543, 397047, 491841, 569911, 754747, 970389, 1147629, 1191141, 1709733, 2264241, 3442887, 3989377, 5129199, 6792723, 11968131, 27925639, 35904393, 83776917, 251330751]

約数ペア:

[(1, 251330751), (3, 83776917), (7, 35904393), (9, 27925639), (21, 11968131), (37, 6792723), (49, 5129199), (63, 3989377), (73, 3442887), (111, 2264241), (147, 1709733), (211, 1191141), (219, 1147629), (259, 970389), (333, 754747), (441, 569911), (511, 491841), (633, 397047), (657, 382543), (777, 323463), (1477, 170163), (1533, 163947), (1813, 138627), (1899, 132349), (2331, 107821), (2701, 93051), (3577, 70263), (4431, 56721), (4599, 54649), (5439, 46209), (7807, 32193), (8103, 31017), (10339, 24309), (10731, 23421), (13293, 18907), (15403, 16317)]