21378576

素因数分解:

$2^4\times 3^1\times {\mathrm{137}}^1\times {\mathrm{3251}}^1$

素因数の和:3399

約数の個数: 40

約数和(自身を含む): 55648224

約数和(自身を除く): 34269648

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 137, 274, 411, 548, 822, 1096, 1644, 2192, 3251, 3288, 6502, 6576, 9753, 13004, 19506, 26008, 39012, 52016, 78024, 156048, 445387, 890774, 1336161, 1781548, 2672322, 3563096, 5344644, 7126192, 10689288, 21378576]

約数ペア:

[(1, 21378576), (2, 10689288), (3, 7126192), (4, 5344644), (6, 3563096), (8, 2672322), (12, 1781548), (16, 1336161), (24, 890774), (48, 445387), (137, 156048), (274, 78024), (411, 52016), (548, 39012), (822, 26008), (1096, 19506), (1644, 13004), (2192, 9753), (3251, 6576), (3288, 6502)]