21403254128

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{2767}}^1\times {\mathrm{11243}}^1$

素因数の和:14061

約数の個数: 40

約数和(自身を含む): 42452306688

約数和(自身を除く): 21049052560

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 2767, 5534, 11068, 11243, 22136, 22486, 44272, 44972, 89944, 118981, 179888, 237962, 475924, 483449, 951848, 966898, 1903696, 1933796, 3867592, 7735184, 31109381, 62218762, 124437524, 248875048, 497750096, 1337703383, 2675406766, 5350813532, 10701627064, 21403254128]

約数ペア:

[(1, 21403254128), (2, 10701627064), (4, 5350813532), (8, 2675406766), (16, 1337703383), (43, 497750096), (86, 248875048), (172, 124437524), (344, 62218762), (688, 31109381), (2767, 7735184), (5534, 3867592), (11068, 1933796), (11243, 1903696), (22136, 966898), (22486, 951848), (44272, 483449), (44972, 475924), (89944, 237962), (118981, 179888)]