21540402

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:204

約数の個数: 72

約数和(自身を含む): 51757524

約数和(自身を除く): 30217122

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 73, 78, 97, 117, 146, 169, 194, 219, 234, 291, 338, 438, 507, 582, 657, 873, 949, 1014, 1261, 1314, 1521, 1746, 1898, 2522, 2847, 3042, 3783, 5694, 7081, 7566, 8541, 11349, 12337, 14162, 16393, 17082, 21243, 22698, 24674, 32786, 37011, 42486, 49179, 63729, 74022, 92053, 98358, 111033, 127458, 147537, 184106, 222066, 276159, 295074, 552318, 828477, 1196689, 1656954, 2393378, 3590067, 7180134, 10770201, 21540402]

約数ペア:

[(1, 21540402), (2, 10770201), (3, 7180134), (6, 3590067), (9, 2393378), (13, 1656954), (18, 1196689), (26, 828477), (39, 552318), (73, 295074), (78, 276159), (97, 222066), (117, 184106), (146, 147537), (169, 127458), (194, 111033), (219, 98358), (234, 92053), (291, 74022), (338, 63729), (438, 49179), (507, 42486), (582, 37011), (657, 32786), (873, 24674), (949, 22698), (1014, 21243), (1261, 17082), (1314, 16393), (1521, 14162), (1746, 12337), (1898, 11349), (2522, 8541), (2847, 7566), (3042, 7081), (3783, 5694)]