20211580221

素因数分解:

$3^1\times 7^2\times {\mathrm{1801}}^1\times {\mathrm{76343}}^1$

素因数の和:78161

約数の個数: 24

約数和(自身を含む): 31366390464

約数和(自身を除く): 11154810243

約数列:

[1, 3, 7, 21, 49, 147, 1801, 5403, 12607, 37821, 76343, 88249, 229029, 264747, 534401, 1603203, 3740807, 11222421, 137493743, 412481229, 962456201, 2887368603, 6737193407, 20211580221]

約数ペア:

[(1, 20211580221), (3, 6737193407), (7, 2887368603), (21, 962456201), (49, 412481229), (147, 137493743), (1801, 11222421), (5403, 3740807), (12607, 1603203), (37821, 534401), (76343, 264747), (88249, 229029)]