221180289

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{126461}}^1$

素因数の和:126528

約数の個数: 16

約数和(自身を含む): 327789504

約数和(自身を除く): 106609215

約数列:

[1, 3, 11, 33, 53, 159, 583, 1749, 126461, 379383, 1391071, 4173213, 6702433, 20107299, 73726763, 221180289]

約数ペア:

[(1, 221180289), (3, 73726763), (11, 20107299), (33, 6702433), (53, 4173213), (159, 1391071), (583, 379383), (1749, 126461)]