19708208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2311}}^1$

素因数の和:2373

約数の個数: 40

約数和(自身を含む): 42143136

約数和(自身を除く): 22434928

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 164, 208, 328, 533, 656, 1066, 2132, 2311, 4264, 4622, 8528, 9244, 18488, 30043, 36976, 60086, 94751, 120172, 189502, 240344, 379004, 480688, 758008, 1231763, 1516016, 2463526, 4927052, 9854104, 19708208]

約数ペア:

[(1, 19708208), (2, 9854104), (4, 4927052), (8, 2463526), (13, 1516016), (16, 1231763), (26, 758008), (41, 480688), (52, 379004), (82, 240344), (104, 189502), (164, 120172), (208, 94751), (328, 60086), (533, 36976), (656, 30043), (1066, 18488), (2132, 9244), (2311, 8528), (4264, 4622)]