31386879

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:165

約数の個数: 64

約数和(自身を含む): 53568000

約数和(自身を除く): 22181121

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 59, 61, 153, 171, 177, 183, 323, 459, 513, 531, 549, 969, 1003, 1037, 1121, 1159, 1593, 1647, 2907, 3009, 3111, 3363, 3477, 3599, 8721, 9027, 9333, 10089, 10431, 10797, 19057, 19703, 27081, 27999, 30267, 31293, 32391, 57171, 59109, 61183, 68381, 97173, 171513, 177327, 183549, 205143, 514539, 531981, 550647, 615429, 1162477, 1651941, 1846287, 3487431, 10462293, 31386879]

約数ペア:

[(1, 31386879), (3, 10462293), (9, 3487431), (17, 1846287), (19, 1651941), (27, 1162477), (51, 615429), (57, 550647), (59, 531981), (61, 514539), (153, 205143), (171, 183549), (177, 177327), (183, 171513), (323, 97173), (459, 68381), (513, 61183), (531, 59109), (549, 57171), (969, 32391), (1003, 31293), (1037, 30267), (1121, 27999), (1159, 27081), (1593, 19703), (1647, 19057), (2907, 10797), (3009, 10431), (3111, 10089), (3363, 9333), (3477, 9027), (3599, 8721)]