217828

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:147

約数の個数: 24

約数和(自身を含む): 423360

約数和(自身を除く): 205532

約数列:

[1, 2, 4, 13, 26, 52, 59, 71, 118, 142, 236, 284, 767, 923, 1534, 1846, 3068, 3692, 4189, 8378, 16756, 54457, 108914, 217828]

約数ペア:

[(1, 217828), (2, 108914), (4, 54457), (13, 16756), (26, 8378), (52, 4189), (59, 3692), (71, 3068), (118, 1846), (142, 1534), (236, 923), (284, 767)]