18899408

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1471}}^1$

素因数の和:1563

約数の個数: 40

約数和(自身を含む): 40521216

約数和(自身を除く): 21621808

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 73, 88, 146, 176, 292, 584, 803, 1168, 1471, 1606, 2942, 3212, 5884, 6424, 11768, 12848, 16181, 23536, 32362, 64724, 107383, 129448, 214766, 258896, 429532, 859064, 1181213, 1718128, 2362426, 4724852, 9449704, 18899408]

約数ペア:

[(1, 18899408), (2, 9449704), (4, 4724852), (8, 2362426), (11, 1718128), (16, 1181213), (22, 859064), (44, 429532), (73, 258896), (88, 214766), (146, 129448), (176, 107383), (292, 64724), (584, 32362), (803, 23536), (1168, 16181), (1471, 12848), (1606, 11768), (2942, 6424), (3212, 5884)]