19526816

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{617}}^1$

素因数の和:693

約数の個数: 48

約数和(自身を含む): 41114304

約数和(自身を除く): 21587488

約数列:

[1, 2, 4, 8, 16, 23, 32, 43, 46, 86, 92, 172, 184, 344, 368, 617, 688, 736, 989, 1234, 1376, 1978, 2468, 3956, 4936, 7912, 9872, 14191, 15824, 19744, 26531, 28382, 31648, 53062, 56764, 106124, 113528, 212248, 227056, 424496, 454112, 610213, 848992, 1220426, 2440852, 4881704, 9763408, 19526816]

約数ペア:

[(1, 19526816), (2, 9763408), (4, 4881704), (8, 2440852), (16, 1220426), (23, 848992), (32, 610213), (43, 454112), (46, 424496), (86, 227056), (92, 212248), (172, 113528), (184, 106124), (344, 56764), (368, 53062), (617, 31648), (688, 28382), (736, 26531), (989, 19744), (1234, 15824), (1376, 14191), (1978, 9872), (2468, 7912), (3956, 4936)]