207719421

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{547}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 346581504

約数和(自身を除く): 138862083

約数列:

[1, 3, 7, 13, 21, 39, 91, 107, 169, 273, 321, 507, 547, 749, 1183, 1391, 1641, 2247, 3549, 3829, 4173, 7111, 9737, 11487, 18083, 21333, 29211, 49777, 54249, 58529, 92443, 126581, 149331, 175587, 277329, 379743, 409703, 647101, 760877, 1229109, 1941303, 2282631, 5326139, 9891401, 15978417, 29674203, 69239807, 207719421]

約数ペア:

[(1, 207719421), (3, 69239807), (7, 29674203), (13, 15978417), (21, 9891401), (39, 5326139), (91, 2282631), (107, 1941303), (169, 1229109), (273, 760877), (321, 647101), (507, 409703), (547, 379743), (749, 277329), (1183, 175587), (1391, 149331), (1641, 126581), (2247, 92443), (3549, 58529), (3829, 54249), (4173, 49777), (7111, 29211), (9737, 21333), (11487, 18083)]