21171040

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{523}}^1$

素因数の和:572

約数の個数: 96

約数和(自身を含む): 57044736

約数和(自身を除く): 35873696

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 32, 40, 44, 46, 55, 80, 88, 92, 110, 115, 160, 176, 184, 220, 230, 253, 352, 368, 440, 460, 506, 523, 736, 880, 920, 1012, 1046, 1265, 1760, 1840, 2024, 2092, 2530, 2615, 3680, 4048, 4184, 5060, 5230, 5753, 8096, 8368, 10120, 10460, 11506, 12029, 16736, 20240, 20920, 23012, 24058, 28765, 40480, 41840, 46024, 48116, 57530, 60145, 83680, 92048, 96232, 115060, 120290, 132319, 184096, 192464, 230120, 240580, 264638, 384928, 460240, 481160, 529276, 661595, 920480, 962320, 1058552, 1323190, 1924640, 2117104, 2646380, 4234208, 5292760, 10585520, 21171040]

約数ペア:

[(1, 21171040), (2, 10585520), (4, 5292760), (5, 4234208), (8, 2646380), (10, 2117104), (11, 1924640), (16, 1323190), (20, 1058552), (22, 962320), (23, 920480), (32, 661595), (40, 529276), (44, 481160), (46, 460240), (55, 384928), (80, 264638), (88, 240580), (92, 230120), (110, 192464), (115, 184096), (160, 132319), (176, 120290), (184, 115060), (220, 96232), (230, 92048), (253, 83680), (352, 60145), (368, 57530), (440, 48116), (460, 46024), (506, 41840), (523, 40480), (736, 28765), (880, 24058), (920, 23012), (1012, 20920), (1046, 20240), (1265, 16736), (1760, 12029), (1840, 11506), (2024, 10460), (2092, 10120), (2530, 8368), (2615, 8096), (3680, 5753), (4048, 5230), (4184, 5060)]