21363320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2111}}^1$

素因数の和:2156

約数の個数: 64

約数和(自身を含む): 54743040

約数和(自身を除く): 33379720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2024, 2111, 2530, 4222, 5060, 8444, 10120, 10555, 16888, 21110, 23221, 42220, 46442, 48553, 84440, 92884, 97106, 116105, 185768, 194212, 232210, 242765, 388424, 464420, 485530, 534083, 928840, 971060, 1068166, 1942120, 2136332, 2670415, 4272664, 5340830, 10681660, 21363320]

約数ペア:

[(1, 21363320), (2, 10681660), (4, 5340830), (5, 4272664), (8, 2670415), (10, 2136332), (11, 1942120), (20, 1068166), (22, 971060), (23, 928840), (40, 534083), (44, 485530), (46, 464420), (55, 388424), (88, 242765), (92, 232210), (110, 194212), (115, 185768), (184, 116105), (220, 97106), (230, 92884), (253, 84440), (440, 48553), (460, 46442), (506, 42220), (920, 23221), (1012, 21110), (1265, 16888), (2024, 10555), (2111, 10120), (2530, 8444), (4222, 5060)]