221521404

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1420009}}^1$

素因数の和:1420029

約数の個数: 24

約数和(自身を含む): 556643920

約数和(自身を除く): 335122516

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 1420009, 2840018, 4260027, 5680036, 8520054, 17040108, 18460117, 36920234, 55380351, 73840468, 110760702, 221521404]

約数ペア:

[(1, 221521404), (2, 110760702), (3, 73840468), (4, 55380351), (6, 36920234), (12, 18460117), (13, 17040108), (26, 8520054), (39, 5680036), (52, 4260027), (78, 2840018), (156, 1420009)]