21850010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1847}}^1$

素因数の和:1887

約数の個数: 48

約数和(自身を含む): 48698496

約数和(自身を除く): 26848486

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 169, 182, 338, 455, 845, 910, 1183, 1690, 1847, 2366, 3694, 5915, 9235, 11830, 12929, 18470, 24011, 25858, 48022, 64645, 120055, 129290, 168077, 240110, 312143, 336154, 624286, 840385, 1560715, 1680770, 2185001, 3121430, 4370002, 10925005, 21850010]

約数ペア:

[(1, 21850010), (2, 10925005), (5, 4370002), (7, 3121430), (10, 2185001), (13, 1680770), (14, 1560715), (26, 840385), (35, 624286), (65, 336154), (70, 312143), (91, 240110), (130, 168077), (169, 129290), (182, 120055), (338, 64645), (455, 48022), (845, 25858), (910, 24011), (1183, 18470), (1690, 12929), (1847, 11830), (2366, 9235), (3694, 5915)]