1321153456

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{250979}}^1$

素因数の和:251041

約数の個数: 40

約数和(自身を含む): 2987665920

約数和(自身を除く): 1666512464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2632, 5264, 250979, 501958, 1003916, 1756853, 2007832, 3513706, 4015664, 7027412, 11796013, 14054824, 23592026, 28109648, 47184052, 82572091, 94368104, 165144182, 188736208, 330288364, 660576728, 1321153456]

約数ペア:

[(1, 1321153456), (2, 660576728), (4, 330288364), (7, 188736208), (8, 165144182), (14, 94368104), (16, 82572091), (28, 47184052), (47, 28109648), (56, 23592026), (94, 14054824), (112, 11796013), (188, 7027412), (329, 4015664), (376, 3513706), (658, 2007832), (752, 1756853), (1316, 1003916), (2632, 501958), (5264, 250979)]