21745490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3559}}^1$

素因数の和:3626

約数の個数: 32

約数和(自身を含む): 43061760

約数和(自身を除く): 21316270

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 235, 470, 611, 1222, 3055, 3559, 6110, 7118, 17795, 35590, 46267, 92534, 167273, 231335, 334546, 462670, 836365, 1672730, 2174549, 4349098, 10872745, 21745490]

約数ペア:

[(1, 21745490), (2, 10872745), (5, 4349098), (10, 2174549), (13, 1672730), (26, 836365), (47, 462670), (65, 334546), (94, 231335), (130, 167273), (235, 92534), (470, 46267), (611, 35590), (1222, 17795), (3055, 7118), (3559, 6110)]