19642864

素因数分解:

$2^4\times {\mathrm{331}}^1\times {\mathrm{3709}}^1$

素因数の和:4048

約数の個数: 20

約数和(自身を含む): 38183320

約数和(自身を除く): 18540456

約数列:

[1, 2, 4, 8, 16, 331, 662, 1324, 2648, 3709, 5296, 7418, 14836, 29672, 59344, 1227679, 2455358, 4910716, 9821432, 19642864]

約数ペア:

[(1, 19642864), (2, 9821432), (4, 4910716), (8, 2455358), (16, 1227679), (331, 59344), (662, 29672), (1324, 14836), (2648, 7418), (3709, 5296)]