21005964

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{83357}}^1$

素因数の和:83374

約数の個数: 36

約数和(自身を含む): 60684624

約数和(自身を除く): 39678660

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 83357, 166714, 250071, 333428, 500142, 583499, 750213, 1000284, 1166998, 1500426, 1750497, 2333996, 3000852, 3500994, 5251491, 7001988, 10502982, 21005964]

約数ペア:

[(1, 21005964), (2, 10502982), (3, 7001988), (4, 5251491), (6, 3500994), (7, 3000852), (9, 2333996), (12, 1750497), (14, 1500426), (18, 1166998), (21, 1000284), (28, 750213), (36, 583499), (42, 500142), (63, 333428), (84, 250071), (126, 166714), (252, 83357)]