21812258

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{809}}^1$

素因数の和:902

約数の個数: 32

約数和(自身を含む): 37966320

約数和(自身を除く): 16154062

約数列:

[1, 2, 13, 17, 26, 34, 61, 122, 221, 442, 793, 809, 1037, 1586, 1618, 2074, 10517, 13481, 13753, 21034, 26962, 27506, 49349, 98698, 178789, 357578, 641537, 838933, 1283074, 1677866, 10906129, 21812258]

約数ペア:

[(1, 21812258), (2, 10906129), (13, 1677866), (17, 1283074), (26, 838933), (34, 641537), (61, 357578), (122, 178789), (221, 98698), (442, 49349), (793, 27506), (809, 26962), (1037, 21034), (1586, 13753), (1618, 13481), (2074, 10517)]