728637

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:197

約数の個数: 32

約数和(自身を含む): 1274112

約数和(自身を除く): 545475

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 157, 221, 273, 357, 471, 663, 1099, 1547, 2041, 2669, 3297, 4641, 6123, 8007, 14287, 18683, 34697, 42861, 56049, 104091, 242879, 728637]

約数ペア:

[(1, 728637), (3, 242879), (7, 104091), (13, 56049), (17, 42861), (21, 34697), (39, 18683), (51, 14287), (91, 8007), (119, 6123), (157, 4641), (221, 3297), (273, 2669), (357, 2041), (471, 1547), (663, 1099)]