21337210

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{401}}^1$

素因数の和:738

約数の個数: 32

約数和(自身を含む): 40897872

約数和(自身を除く): 19560662

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 313, 401, 626, 802, 1565, 2005, 3130, 4010, 5321, 6817, 10642, 13634, 26605, 34085, 53210, 68170, 125513, 251026, 627565, 1255130, 2133721, 4267442, 10668605, 21337210]

約数ペア:

[(1, 21337210), (2, 10668605), (5, 4267442), (10, 2133721), (17, 1255130), (34, 627565), (85, 251026), (170, 125513), (313, 68170), (401, 53210), (626, 34085), (802, 26605), (1565, 13634), (2005, 10642), (3130, 6817), (4010, 5321)]