21294710

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{547}}^1$

素因数の和:800

約数の個数: 32

約数和(自身を含む): 40836960

約数和(自身を除く): 19542250

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 229, 458, 547, 1094, 1145, 2290, 2735, 3893, 5470, 7786, 9299, 18598, 19465, 38930, 46495, 92990, 125263, 250526, 626315, 1252630, 2129471, 4258942, 10647355, 21294710]

約数ペア:

[(1, 21294710), (2, 10647355), (5, 4258942), (10, 2129471), (17, 1252630), (34, 626315), (85, 250526), (170, 125263), (229, 92990), (458, 46495), (547, 38930), (1094, 19465), (1145, 18598), (2290, 9299), (2735, 7786), (3893, 5470)]