20841392

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9109}}^1$

素因数の和:9141

約数の個数: 40

約数和(自身を含む): 47444880

約数和(自身を除く): 26603488

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 9109, 18218, 36436, 72872, 100199, 118417, 145744, 200398, 236834, 400796, 473668, 801592, 947336, 1302587, 1603184, 1894672, 2605174, 5210348, 10420696, 20841392]

約数ペア:

[(1, 20841392), (2, 10420696), (4, 5210348), (8, 2605174), (11, 1894672), (13, 1603184), (16, 1302587), (22, 947336), (26, 801592), (44, 473668), (52, 400796), (88, 236834), (104, 200398), (143, 145744), (176, 118417), (208, 100199), (286, 72872), (572, 36436), (1144, 18218), (2288, 9109)]