19917304

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{947}}^1$

素因数の和:1203

約数の個数: 32

約数和(自身を含む): 40953600

約数和(自身を除く): 21036296

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 239, 478, 947, 956, 1894, 1912, 2629, 3788, 5258, 7576, 10417, 10516, 20834, 21032, 41668, 83336, 226333, 452666, 905332, 1810664, 2489663, 4979326, 9958652, 19917304]

約数ペア:

[(1, 19917304), (2, 9958652), (4, 4979326), (8, 2489663), (11, 1810664), (22, 905332), (44, 452666), (88, 226333), (239, 83336), (478, 41668), (947, 21032), (956, 20834), (1894, 10516), (1912, 10417), (2629, 7576), (3788, 5258)]