278313243

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{2477}}^1$

素因数の和:2603

約数の個数: 32

約数和(自身を含む): 415193856

約数和(自身を除く): 136880613

約数列:

[1, 3, 13, 39, 43, 67, 129, 201, 559, 871, 1677, 2477, 2613, 2881, 7431, 8643, 32201, 37453, 96603, 106511, 112359, 165959, 319533, 497877, 1384643, 2157467, 4153929, 6472401, 7136237, 21408711, 92771081, 278313243]

約数ペア:

[(1, 278313243), (3, 92771081), (13, 21408711), (39, 7136237), (43, 6472401), (67, 4153929), (129, 2157467), (201, 1384643), (559, 497877), (871, 319533), (1677, 165959), (2477, 112359), (2613, 106511), (2881, 96603), (7431, 37453), (8643, 32201)]