20091994

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{347}}^1$

素因数の和:510

約数の個数: 32

約数和(自身を含む): 34727616

約数和(自身を除く): 14635622

約数列:

[1, 2, 13, 17, 26, 34, 131, 221, 262, 347, 442, 694, 1703, 2227, 3406, 4454, 4511, 5899, 9022, 11798, 28951, 45457, 57902, 76687, 90914, 153374, 590941, 772769, 1181882, 1545538, 10045997, 20091994]

約数ペア:

[(1, 20091994), (2, 10045997), (13, 1545538), (17, 1181882), (26, 772769), (34, 590941), (131, 153374), (221, 90914), (262, 76687), (347, 57902), (442, 45457), (694, 28951), (1703, 11798), (2227, 9022), (3406, 5899), (4454, 4511)]