17978904

素因数分解:

$2^3\times 3^2\times {\mathrm{71}}^1\times {\mathrm{3517}}^1$

素因数の和:3600

約数の個数: 48

約数和(自身を含む): 49392720

約数和(自身を除く): 31413816

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 71, 72, 142, 213, 284, 426, 568, 639, 852, 1278, 1704, 2556, 3517, 5112, 7034, 10551, 14068, 21102, 28136, 31653, 42204, 63306, 84408, 126612, 249707, 253224, 499414, 749121, 998828, 1498242, 1997656, 2247363, 2996484, 4494726, 5992968, 8989452, 17978904]

約数ペア:

[(1, 17978904), (2, 8989452), (3, 5992968), (4, 4494726), (6, 2996484), (8, 2247363), (9, 1997656), (12, 1498242), (18, 998828), (24, 749121), (36, 499414), (71, 253224), (72, 249707), (142, 126612), (213, 84408), (284, 63306), (426, 42204), (568, 31653), (639, 28136), (852, 21102), (1278, 14068), (1704, 10551), (2556, 7034), (3517, 5112)]