21093440

素因数分解:

$2^6\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2273}}^1$

素因数の和:2319

約数の個数: 56

約数和(自身を含む): 51983640

約数和(自身を除く): 30890200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 145, 160, 232, 290, 320, 464, 580, 928, 1160, 1856, 2273, 2320, 4546, 4640, 9092, 9280, 11365, 18184, 22730, 36368, 45460, 65917, 72736, 90920, 131834, 145472, 181840, 263668, 329585, 363680, 527336, 659170, 727360, 1054672, 1318340, 2109344, 2636680, 4218688, 5273360, 10546720, 21093440]

約数ペア:

[(1, 21093440), (2, 10546720), (4, 5273360), (5, 4218688), (8, 2636680), (10, 2109344), (16, 1318340), (20, 1054672), (29, 727360), (32, 659170), (40, 527336), (58, 363680), (64, 329585), (80, 263668), (116, 181840), (145, 145472), (160, 131834), (232, 90920), (290, 72736), (320, 65917), (464, 45460), (580, 36368), (928, 22730), (1160, 18184), (1856, 11365), (2273, 9280), (2320, 9092), (4546, 4640)]