646072878

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{137873}}^1$

素因数の和:137960

約数の個数: 32

約数和(自身を含む): 1429477632

約数和(自身を除く): 783404754

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 71, 142, 213, 426, 781, 1562, 2343, 4686, 137873, 275746, 413619, 827238, 1516603, 3033206, 4549809, 9099618, 9788983, 19577966, 29366949, 58733898, 107678813, 215357626, 323036439, 646072878]

約数ペア:

[(1, 646072878), (2, 323036439), (3, 215357626), (6, 107678813), (11, 58733898), (22, 29366949), (33, 19577966), (66, 9788983), (71, 9099618), (142, 4549809), (213, 3033206), (426, 1516603), (781, 827238), (1562, 413619), (2343, 275746), (4686, 137873)]