21870132

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 52581312

約数和(自身を除く): 30711180

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 137, 159, 212, 251, 274, 318, 411, 502, 548, 636, 753, 822, 1004, 1506, 1644, 3012, 7261, 13303, 14522, 21783, 26606, 29044, 34387, 39909, 43566, 53212, 68774, 79818, 87132, 103161, 137548, 159636, 206322, 412644, 1822511, 3645022, 5467533, 7290044, 10935066, 21870132]

約数ペア:

[(1, 21870132), (2, 10935066), (3, 7290044), (4, 5467533), (6, 3645022), (12, 1822511), (53, 412644), (106, 206322), (137, 159636), (159, 137548), (212, 103161), (251, 87132), (274, 79818), (318, 68774), (411, 53212), (502, 43566), (548, 39909), (636, 34387), (753, 29044), (822, 26606), (1004, 21783), (1506, 14522), (1644, 13303), (3012, 7261)]