21955340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4339}}^1$

素因数の和:4382

約数の個数: 48

約数和(自身を含む): 52496640

約数和(自身を除く): 30541300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 4339, 5060, 8678, 17356, 21695, 43390, 47729, 86780, 95458, 99797, 190916, 199594, 238645, 399188, 477290, 498985, 954580, 997970, 1097767, 1995940, 2195534, 4391068, 5488835, 10977670, 21955340]

約数ペア:

[(1, 21955340), (2, 10977670), (4, 5488835), (5, 4391068), (10, 2195534), (11, 1995940), (20, 1097767), (22, 997970), (23, 954580), (44, 498985), (46, 477290), (55, 399188), (92, 238645), (110, 199594), (115, 190916), (220, 99797), (230, 95458), (253, 86780), (460, 47729), (506, 43390), (1012, 21695), (1265, 17356), (2530, 8678), (4339, 5060)]