20837518

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{251}}^1$

素因数の和:400

約数の個数: 32

約数和(自身を含む): 35223552

約数和(自身を除く): 14386034

約数列:

[1, 2, 13, 26, 31, 62, 103, 206, 251, 403, 502, 806, 1339, 2678, 3193, 3263, 6386, 6526, 7781, 15562, 25853, 41509, 51706, 83018, 101153, 202306, 336089, 672178, 801443, 1602886, 10418759, 20837518]

約数ペア:

[(1, 20837518), (2, 10418759), (13, 1602886), (26, 801443), (31, 672178), (62, 336089), (103, 202306), (206, 101153), (251, 83018), (403, 51706), (502, 41509), (806, 25853), (1339, 15562), (2678, 7781), (3193, 6526), (3263, 6386)]