21421206

素因数分解:

$2^1\times 3^3\times {\mathrm{173}}^1\times {\mathrm{2293}}^1$

素因数の和:2477

約数の個数: 32

約数和(自身を含む): 47898720

約数和(自身を除く): 26477514

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 173, 346, 519, 1038, 1557, 2293, 3114, 4586, 4671, 6879, 9342, 13758, 20637, 41274, 61911, 123822, 396689, 793378, 1190067, 2380134, 3570201, 7140402, 10710603, 21421206]

約数ペア:

[(1, 21421206), (2, 10710603), (3, 7140402), (6, 3570201), (9, 2380134), (18, 1190067), (27, 793378), (54, 396689), (173, 123822), (346, 61911), (519, 41274), (1038, 20637), (1557, 13758), (2293, 9342), (3114, 6879), (4586, 4671)]