20213306516

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{729301}}^1$

素因数の和:729372

約数の個数: 36

約数和(自身を含む): 39237906204

約数和(自身を除く): 19024599688

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 169, 338, 533, 676, 1066, 2132, 6929, 13858, 27716, 729301, 1458602, 2917204, 9480913, 18961826, 29901341, 37923652, 59802682, 119605364, 123251869, 246503738, 388717433, 493007476, 777434866, 1554869732, 5053326629, 10106653258, 20213306516]

約数ペア:

[(1, 20213306516), (2, 10106653258), (4, 5053326629), (13, 1554869732), (26, 777434866), (41, 493007476), (52, 388717433), (82, 246503738), (164, 123251869), (169, 119605364), (338, 59802682), (533, 37923652), (676, 29901341), (1066, 18961826), (2132, 9480913), (6929, 2917204), (13858, 1458602), (27716, 729301)]