21548451

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:339

約数の個数: 24

約数和(自身を含む): 30778704

約数和(自身を除く): 9230253

約数列:

[1, 3, 19, 57, 101, 197, 303, 361, 591, 1083, 1919, 3743, 5757, 11229, 19897, 36461, 59691, 71117, 109383, 213351, 378043, 1134129, 7182817, 21548451]

約数ペア:

[(1, 21548451), (3, 7182817), (19, 1134129), (57, 378043), (101, 213351), (197, 109383), (303, 71117), (361, 59691), (591, 36461), (1083, 19897), (1919, 11229), (3743, 5757)]