21636356

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{401}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 45384192

約数和(自身を除く): 23747836

約数列:

[1, 2, 4, 7, 14, 28, 41, 47, 82, 94, 164, 188, 287, 329, 401, 574, 658, 802, 1148, 1316, 1604, 1927, 2807, 3854, 5614, 7708, 11228, 13489, 16441, 18847, 26978, 32882, 37694, 53956, 65764, 75388, 115087, 131929, 230174, 263858, 460348, 527716, 772727, 1545454, 3090908, 5409089, 10818178, 21636356]

約数ペア:

[(1, 21636356), (2, 10818178), (4, 5409089), (7, 3090908), (14, 1545454), (28, 772727), (41, 527716), (47, 460348), (82, 263858), (94, 230174), (164, 131929), (188, 115087), (287, 75388), (329, 65764), (401, 53956), (574, 37694), (658, 32882), (802, 26978), (1148, 18847), (1316, 16441), (1604, 13489), (1927, 11228), (2807, 7708), (3854, 5614)]