221004004

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{7603}}^1$

素因数の和:7676

約数の個数: 36

約数和(自身を含む): 428591856

約数和(自身を除く): 207587852

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 169, 172, 338, 559, 676, 1118, 2236, 7267, 7603, 14534, 15206, 29068, 30412, 98839, 197678, 326929, 395356, 653858, 1284907, 1307716, 2569814, 4250077, 5139628, 8500154, 17000308, 55251001, 110502002, 221004004]

約数ペア:

[(1, 221004004), (2, 110502002), (4, 55251001), (13, 17000308), (26, 8500154), (43, 5139628), (52, 4250077), (86, 2569814), (169, 1307716), (172, 1284907), (338, 653858), (559, 395356), (676, 326929), (1118, 197678), (2236, 98839), (7267, 30412), (7603, 29068), (14534, 15206)]