20891910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53569}}^1$

素因数の和:53592

約数の個数: 32

約数和(自身を含む): 53998560

約数和(自身を除く): 33106650

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53569, 107138, 160707, 267845, 321414, 535690, 696397, 803535, 1392794, 1607070, 2089191, 3481985, 4178382, 6963970, 10445955, 20891910]

約数ペア:

[(1, 20891910), (2, 10445955), (3, 6963970), (5, 4178382), (6, 3481985), (10, 2089191), (13, 1607070), (15, 1392794), (26, 803535), (30, 696397), (39, 535690), (65, 321414), (78, 267845), (130, 160707), (195, 107138), (390, 53569)]