21608444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1021}}^1$

素因数の和:1086

約数の個数: 48

約数和(自身を含む): 45671136

約数和(自身を除く): 24062692

約数列:

[1, 2, 4, 11, 13, 22, 26, 37, 44, 52, 74, 143, 148, 286, 407, 481, 572, 814, 962, 1021, 1628, 1924, 2042, 4084, 5291, 10582, 11231, 13273, 21164, 22462, 26546, 37777, 44924, 53092, 75554, 146003, 151108, 292006, 415547, 491101, 584012, 831094, 982202, 1662188, 1964404, 5402111, 10804222, 21608444]

約数ペア:

[(1, 21608444), (2, 10804222), (4, 5402111), (11, 1964404), (13, 1662188), (22, 982202), (26, 831094), (37, 584012), (44, 491101), (52, 415547), (74, 292006), (143, 151108), (148, 146003), (286, 75554), (407, 53092), (481, 44924), (572, 37777), (814, 26546), (962, 22462), (1021, 21164), (1628, 13273), (1924, 11231), (2042, 10582), (4084, 5291)]