1639403876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1201909}}^1$

素因数の和:1201955

約数の個数: 24

約数和(自身を含む): 3230734080

約数和(自身を除く): 1591330204

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 682, 1364, 1201909, 2403818, 4807636, 13220999, 26441998, 37259179, 52883996, 74518358, 149036716, 409850969, 819701938, 1639403876]

約数ペア:

[(1, 1639403876), (2, 819701938), (4, 409850969), (11, 149036716), (22, 74518358), (31, 52883996), (44, 37259179), (62, 26441998), (124, 13220999), (341, 4807636), (682, 2403818), (1364, 1201909)]