19776772

素因数分解:

$2^2\times {\mathrm{137}}^1\times {\mathrm{151}}^1\times {\mathrm{239}}^1$

素因数の和:531

約数の個数: 24

約数和(自身を含む): 35239680

約数和(自身を除く): 15462908

約数列:

[1, 2, 4, 137, 151, 239, 274, 302, 478, 548, 604, 956, 20687, 32743, 36089, 41374, 65486, 72178, 82748, 130972, 144356, 4944193, 9888386, 19776772]

約数ペア:

[(1, 19776772), (2, 9888386), (4, 4944193), (137, 144356), (151, 130972), (239, 82748), (274, 72178), (302, 65486), (478, 41374), (548, 36089), (604, 32743), (956, 20687)]