21156804

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{30931}}^1$

素因数の和:30960

約数の個数: 36

約数和(自身を含む): 56296240

約数和(自身を除く): 35139436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 30931, 61862, 92793, 123724, 185586, 278379, 371172, 556758, 587689, 1113516, 1175378, 1763067, 2350756, 3526134, 5289201, 7052268, 10578402, 21156804]

約数ペア:

[(1, 21156804), (2, 10578402), (3, 7052268), (4, 5289201), (6, 3526134), (9, 2350756), (12, 1763067), (18, 1175378), (19, 1113516), (36, 587689), (38, 556758), (57, 371172), (76, 278379), (114, 185586), (171, 123724), (228, 92793), (342, 61862), (684, 30931)]