21270964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{907}}^1$

素因数の和:976

約数の個数: 48

約数和(自身を含む): 44847936

約数和(自身を除く): 23576972

約数列:

[1, 2, 4, 11, 13, 22, 26, 41, 44, 52, 82, 143, 164, 286, 451, 533, 572, 902, 907, 1066, 1804, 1814, 2132, 3628, 5863, 9977, 11726, 11791, 19954, 23452, 23582, 37187, 39908, 47164, 74374, 129701, 148748, 259402, 409057, 483431, 518804, 818114, 966862, 1636228, 1933724, 5317741, 10635482, 21270964]

約数ペア:

[(1, 21270964), (2, 10635482), (4, 5317741), (11, 1933724), (13, 1636228), (22, 966862), (26, 818114), (41, 518804), (44, 483431), (52, 409057), (82, 259402), (143, 148748), (164, 129701), (286, 74374), (451, 47164), (533, 39908), (572, 37187), (902, 23582), (907, 23452), (1066, 19954), (1804, 11791), (1814, 11726), (2132, 9977), (3628, 5863)]