21869320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2161}}^1$

素因数の和:2206

約数の個数: 64

約数和(自身を含む): 56039040

約数和(自身を除く): 34169720

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, 2161, 2530, 4322, 5060, 8644, 10120, 10805, 17288, 21610, 23771, 43220, 47542, 49703, 86440, 95084, 99406, 118855, 190168, 198812, 237710, 248515, 397624, 475420, 497030, 546733, 950840, 994060, 1093466, 1988120, 2186932, 2733665, 4373864, 5467330, 10934660, 21869320]

約数ペア:

[(1, 21869320), (2, 10934660), (4, 5467330), (5, 4373864), (8, 2733665), (10, 2186932), (11, 1988120), (20, 1093466), (22, 994060), (23, 950840), (40, 546733), (44, 497030), (46, 475420), (55, 397624), (88, 248515), (92, 237710), (110, 198812), (115, 190168), (184, 118855), (220, 99406), (230, 95084), (253, 86440), (440, 49703), (460, 47542), (506, 43220), (920, 23771), (1012, 21610), (1265, 17288), (2024, 10805), (2161, 10120), (2530, 8644), (4322, 5060)]