21619796

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{2351}}^1$

素因数の和:2396

約数の個数: 36

約数和(自身を含む): 43794240

約数和(自身を除く): 22174444

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 209, 242, 418, 484, 836, 2299, 2351, 4598, 4702, 9196, 9404, 25861, 44669, 51722, 89338, 103444, 178676, 284471, 491359, 568942, 982718, 1137884, 1965436, 5404949, 10809898, 21619796]

約数ペア:

[(1, 21619796), (2, 10809898), (4, 5404949), (11, 1965436), (19, 1137884), (22, 982718), (38, 568942), (44, 491359), (76, 284471), (121, 178676), (209, 103444), (242, 89338), (418, 51722), (484, 44669), (836, 25861), (2299, 9404), (2351, 9196), (4598, 4702)]