19963856

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1693}}^1$

素因数の和:1779

約数の個数: 40

約数和(自身を含む): 42851424

約数和(自身を除く): 22887568

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 67, 88, 134, 176, 268, 536, 737, 1072, 1474, 1693, 2948, 3386, 5896, 6772, 11792, 13544, 18623, 27088, 37246, 74492, 113431, 148984, 226862, 297968, 453724, 907448, 1247741, 1814896, 2495482, 4990964, 9981928, 19963856]

約数ペア:

[(1, 19963856), (2, 9981928), (4, 4990964), (8, 2495482), (11, 1814896), (16, 1247741), (22, 907448), (44, 453724), (67, 297968), (88, 226862), (134, 148984), (176, 113431), (268, 74492), (536, 37246), (737, 27088), (1072, 18623), (1474, 13544), (1693, 11792), (2948, 6772), (3386, 5896)]