21021786

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{17431}}^1$

素因数の和:17506

約数の個数: 24

約数和(自身を含む): 46229664

約数和(自身を除く): 25207878

約数列:

[1, 2, 3, 6, 9, 18, 67, 134, 201, 402, 603, 1206, 17431, 34862, 52293, 104586, 156879, 313758, 1167877, 2335754, 3503631, 7007262, 10510893, 21021786]

約数ペア:

[(1, 21021786), (2, 10510893), (3, 7007262), (6, 3503631), (9, 2335754), (18, 1167877), (67, 313758), (134, 156879), (201, 104586), (402, 52293), (603, 34862), (1206, 17431)]