21000655184

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{179}}^1\times {\mathrm{100447}}^1$

素因数の和:100707

約数の個数: 40

約数和(自身を含む): 41476988160

約数和(自身を除く): 20476332976

約数列:

[1, 2, 4, 8, 16, 73, 146, 179, 292, 358, 584, 716, 1168, 1432, 2864, 13067, 26134, 52268, 100447, 104536, 200894, 209072, 401788, 803576, 1607152, 7332631, 14665262, 17980013, 29330524, 35960026, 58661048, 71920052, 117322096, 143840104, 287680208, 1312540949, 2625081898, 5250163796, 10500327592, 21000655184]

約数ペア:

[(1, 21000655184), (2, 10500327592), (4, 5250163796), (8, 2625081898), (16, 1312540949), (73, 287680208), (146, 143840104), (179, 117322096), (292, 71920052), (358, 58661048), (584, 35960026), (716, 29330524), (1168, 17980013), (1432, 14665262), (2864, 7332631), (13067, 1607152), (26134, 803576), (52268, 401788), (100447, 209072), (104536, 200894)]