19921330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{13931}}^1$

素因数の和:13962

約数の個数: 32

約数和(自身を含む): 42130368

約数和(自身を除く): 22209038

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 13931, 27862, 69655, 139310, 153241, 181103, 306482, 362206, 766205, 905515, 1532410, 1811030, 1992133, 3984266, 9960665, 19921330]

約数ペア:

[(1, 19921330), (2, 9960665), (5, 3984266), (10, 1992133), (11, 1811030), (13, 1532410), (22, 905515), (26, 766205), (55, 362206), (65, 306482), (110, 181103), (130, 153241), (143, 139310), (286, 69655), (715, 27862), (1430, 13931)]