21156720698

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{653}}^1\times {\mathrm{395113}}^1$

素因数の和:395809

約数の個数: 16

約数和(自身を含む): 32558974056

約数和(自身を除く): 11402253358

約数列:

[1, 2, 41, 82, 653, 1306, 26773, 53546, 395113, 790226, 16199633, 32399266, 258008789, 516017578, 10578360349, 21156720698]

約数ペア:

[(1, 21156720698), (2, 10578360349), (41, 516017578), (82, 258008789), (653, 32399266), (1306, 16199633), (26773, 790226), (53546, 395113)]