216782241

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{991}}^1$

素因数の和:1157

約数の個数: 32

約数和(自身を含む): 319979520

約数和(自身を除く): 103197279

約数列:

[1, 3, 13, 39, 71, 79, 213, 237, 923, 991, 1027, 2769, 2973, 3081, 5609, 12883, 16827, 38649, 70361, 72917, 78289, 211083, 218751, 234867, 914693, 1017757, 2744079, 3053271, 5558519, 16675557, 72260747, 216782241]

約数ペア:

[(1, 216782241), (3, 72260747), (13, 16675557), (39, 5558519), (71, 3053271), (79, 2744079), (213, 1017757), (237, 914693), (923, 234867), (991, 218751), (1027, 211083), (2769, 78289), (2973, 72917), (3081, 70361), (5609, 38649), (12883, 16827)]