21199721972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{227377}}^1$

素因数の和:227568

約数の個数: 48

約数和(自身を含む): 43853030592

約数和(自身を除く): 22653308620

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 163, 286, 326, 572, 652, 1793, 2119, 3586, 4238, 7172, 8476, 23309, 46618, 93236, 227377, 454754, 909508, 2501147, 2955901, 5002294, 5911802, 10004588, 11823604, 32514911, 37062451, 65029822, 74124902, 130059644, 148249804, 407686961, 481811863, 815373922, 963623726, 1630747844, 1927247452, 5299930493, 10599860986, 21199721972]

約数ペア:

[(1, 21199721972), (2, 10599860986), (4, 5299930493), (11, 1927247452), (13, 1630747844), (22, 963623726), (26, 815373922), (44, 481811863), (52, 407686961), (143, 148249804), (163, 130059644), (286, 74124902), (326, 65029822), (572, 37062451), (652, 32514911), (1793, 11823604), (2119, 10004588), (3586, 5911802), (4238, 5002294), (7172, 2955901), (8476, 2501147), (23309, 909508), (46618, 454754), (93236, 227377)]