217520641

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1\times {\mathrm{509}}^1$

素因数の和:1056

約数の個数: 16

約数和(自身を含む): 238533120

約数和(自身を除く): 21012479

約数列:

[1, 13, 71, 463, 509, 923, 6019, 6617, 32873, 36139, 235667, 427349, 469807, 3063671, 16732357, 217520641]

約数ペア:

[(1, 217520641), (13, 16732357), (71, 3063671), (463, 469807), (509, 427349), (923, 235667), (6019, 36139), (6617, 32873)]