31103930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21751}}^1$

素因数の和:21782

約数の個数: 32

約数和(自身を含む): 65778048

約数和(自身を除く): 34674118

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 21751, 43502, 108755, 217510, 239261, 282763, 478522, 565526, 1196305, 1413815, 2392610, 2827630, 3110393, 6220786, 15551965, 31103930]

約数ペア:

[(1, 31103930), (2, 15551965), (5, 6220786), (10, 3110393), (11, 2827630), (13, 2392610), (22, 1413815), (26, 1196305), (55, 565526), (65, 478522), (110, 282763), (130, 239261), (143, 217510), (286, 108755), (715, 43502), (1430, 21751)]