21093578

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 36039168

約数和(自身を除く): 14945590

約数列:

[1, 2, 11, 22, 31, 62, 157, 197, 314, 341, 394, 682, 1727, 2167, 3454, 4334, 4867, 6107, 9734, 12214, 30929, 53537, 61858, 67177, 107074, 134354, 340219, 680438, 958799, 1917598, 10546789, 21093578]

約数ペア:

[(1, 21093578), (2, 10546789), (11, 1917598), (22, 958799), (31, 680438), (62, 340219), (157, 134354), (197, 107074), (314, 67177), (341, 61858), (394, 53537), (682, 30929), (1727, 12214), (2167, 9734), (3454, 6107), (4334, 4867)]