399291249

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{349}}^1$

素因数の和:590

約数の個数: 48

約数和(自身を含む): 639038400

約数和(自身を除く): 239747151

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 181, 301, 349, 543, 903, 1047, 1267, 2107, 2443, 3801, 6321, 7329, 7783, 8869, 15007, 17101, 23349, 26607, 45021, 51303, 54481, 63169, 105049, 163443, 189507, 315147, 381367, 442183, 735343, 1144101, 1326549, 2206029, 2716267, 3095281, 8148801, 9285843, 19013869, 57041607, 133097083, 399291249]

約数ペア:

[(1, 399291249), (3, 133097083), (7, 57041607), (21, 19013869), (43, 9285843), (49, 8148801), (129, 3095281), (147, 2716267), (181, 2206029), (301, 1326549), (349, 1144101), (543, 735343), (903, 442183), (1047, 381367), (1267, 315147), (2107, 189507), (2443, 163443), (3801, 105049), (6321, 63169), (7329, 54481), (7783, 51303), (8869, 45021), (15007, 26607), (17101, 23349)]