21089926

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1993}}^1$

素因数の和:2056

約数の個数: 32

約数和(自身を含む): 38189088

約数和(自身を除く): 17099162

約数列:

[1, 2, 11, 13, 22, 26, 37, 74, 143, 286, 407, 481, 814, 962, 1993, 3986, 5291, 10582, 21923, 25909, 43846, 51818, 73741, 147482, 284999, 569998, 811151, 958633, 1622302, 1917266, 10544963, 21089926]

約数ペア:

[(1, 21089926), (2, 10544963), (11, 1917266), (13, 1622302), (22, 958633), (26, 811151), (37, 569998), (74, 284999), (143, 147482), (286, 73741), (407, 51818), (481, 43846), (814, 25909), (962, 21923), (1993, 10582), (3986, 5291)]