21000359570

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1\times {\mathrm{3253}}^1$

素因数の和:3599

約数の個数: 64

約数和(自身を含む): 39662615520

約数和(自身を除く): 18662255950

約数列:

[1, 2, 5, 10, 29, 58, 113, 145, 197, 226, 290, 394, 565, 985, 1130, 1970, 3253, 3277, 5713, 6506, 6554, 11426, 16265, 16385, 22261, 28565, 32530, 32770, 44522, 57130, 94337, 111305, 188674, 222610, 367589, 471685, 640841, 645569, 735178, 943370, 1281682, 1291138, 1837945, 3204205, 3227845, 3675890, 6408410, 6455690, 10660081, 18584389, 21320162, 37168778, 53300405, 72415033, 92921945, 106600810, 144830066, 185843890, 362075165, 724150330, 2100035957, 4200071914, 10500179785, 21000359570]

約数ペア:

[(1, 21000359570), (2, 10500179785), (5, 4200071914), (10, 2100035957), (29, 724150330), (58, 362075165), (113, 185843890), (145, 144830066), (197, 106600810), (226, 92921945), (290, 72415033), (394, 53300405), (565, 37168778), (985, 21320162), (1130, 18584389), (1970, 10660081), (3253, 6455690), (3277, 6408410), (5713, 3675890), (6506, 3227845), (6554, 3204205), (11426, 1837945), (16265, 1291138), (16385, 1281682), (22261, 943370), (28565, 735178), (32530, 645569), (32770, 640841), (44522, 471685), (57130, 367589), (94337, 222610), (111305, 188674)]