219640894

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{617}}^1\times {\mathrm{1471}}^1$

素因数の和:2112

約数の個数: 24

約数和(自身を含む): 362968704

約数和(自身を除く): 143327810

約数列:

[1, 2, 11, 22, 121, 242, 617, 1234, 1471, 2942, 6787, 13574, 16181, 32362, 74657, 149314, 177991, 355982, 907607, 1815214, 9983677, 19967354, 109820447, 219640894]

約数ペア:

[(1, 219640894), (2, 109820447), (11, 19967354), (22, 9983677), (121, 1815214), (242, 907607), (617, 355982), (1234, 177991), (1471, 149314), (2942, 74657), (6787, 32362), (13574, 16181)]