642916.0000000

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:145

約数の個数: 40

約数和(自身を含む): 6017088

約数和(自身を除く): 2404245

約数列:

[1, 3, 9, 13, 27, 39, 47, 73, 81, 117, 141, 219, 351, 423, 611, 657, 949, 1053, 1269, 1833, 1971, 2847, 3431, 3807, 5499, 5913, 8541, 10293, 16497, 25623, 30879, 44603, 49491, 76869, 92637, 133809, 277911, 401427, 1204281, 3612843]

約数ペア:

[(1, 3612843), (3, 1204281), (9, 401427), (13, 277911), (27, 133809), (39, 92637), (47, 76869), (73, 49491), (81, 44603), (117, 30879), (141, 25623), (219, 16497), (351, 10293), (423, 8541), (611, 5913), (657, 5499), (949, 3807), (1053, 3431), (1269, 2847), (1833, 1971)]