220001331

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1\times {\mathrm{443}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 326073600

約数和(自身を除く): 106072269

約数列:

[1, 3, 11, 33, 101, 149, 303, 443, 447, 1111, 1329, 1639, 3333, 4873, 4917, 14619, 15049, 44743, 45147, 66007, 134229, 165539, 198021, 492173, 496617, 726077, 1476519, 2178231, 6666707, 20000121, 73333777, 220001331]

約数ペア:

[(1, 220001331), (3, 73333777), (11, 20000121), (33, 6666707), (101, 2178231), (149, 1476519), (303, 726077), (443, 496617), (447, 492173), (1111, 198021), (1329, 165539), (1639, 134229), (3333, 66007), (4873, 45147), (4917, 44743), (14619, 15049)]