21000663530

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{359}}^1\times {\mathrm{10853}}^1$

素因数の和:11244

約数の個数: 96

約数和(自身を含む): 48108401280

約数和(自身を除く): 27107737750

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 359, 385, 490, 539, 718, 770, 1078, 1795, 2513, 2695, 3590, 3949, 5026, 5390, 7898, 10853, 12565, 17591, 19745, 21706, 25130, 27643, 35182, 39490, 54265, 55286, 75971, 87955, 108530, 119383, 138215, 151942, 175910, 193501, 238766, 276430, 379855, 387002, 531797, 596915, 759710, 835681, 967505, 1063594, 1193830, 1671362, 1935010, 2658985, 3896227, 4178405, 5317970, 5849767, 7792454, 8356810, 11699534, 19481135, 27273589, 29248835, 38962270, 42858497, 54547178, 58497670, 85716994, 136367945, 190915123, 214292485, 272735890, 300009479, 381830246, 428584970, 600018958, 954575615, 1500047395, 1909151230, 2100066353, 3000094790, 4200132706, 10500331765, 21000663530]

約数ペア:

[(1, 21000663530), (2, 10500331765), (5, 4200132706), (7, 3000094790), (10, 2100066353), (11, 1909151230), (14, 1500047395), (22, 954575615), (35, 600018958), (49, 428584970), (55, 381830246), (70, 300009479), (77, 272735890), (98, 214292485), (110, 190915123), (154, 136367945), (245, 85716994), (359, 58497670), (385, 54547178), (490, 42858497), (539, 38962270), (718, 29248835), (770, 27273589), (1078, 19481135), (1795, 11699534), (2513, 8356810), (2695, 7792454), (3590, 5849767), (3949, 5317970), (5026, 4178405), (5390, 3896227), (7898, 2658985), (10853, 1935010), (12565, 1671362), (17591, 1193830), (19745, 1063594), (21706, 967505), (25130, 835681), (27643, 759710), (35182, 596915), (39490, 531797), (54265, 387002), (55286, 379855), (75971, 276430), (87955, 238766), (108530, 193501), (119383, 175910), (138215, 151942)]