1621395981

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{271}}^1$

素因数の和:483

約数の個数: 64

約数和(自身を含む): 2545136640

約数和(自身を除く): 923740659

約数列:

[1, 3, 9, 27, 37, 53, 111, 113, 159, 271, 333, 339, 477, 813, 999, 1017, 1431, 1961, 2439, 3051, 4181, 5883, 5989, 7317, 10027, 12543, 14363, 17649, 17967, 30081, 30623, 37629, 43089, 52947, 53901, 90243, 91869, 112887, 129267, 161703, 221593, 270729, 275607, 387801, 531431, 664779, 826821, 1133051, 1594293, 1623019, 1994337, 3399153, 4782879, 4869057, 5983011, 10197459, 14348637, 14607171, 30592377, 43821513, 60051703, 180155109, 540465327, 1621395981]

約数ペア:

[(1, 1621395981), (3, 540465327), (9, 180155109), (27, 60051703), (37, 43821513), (53, 30592377), (111, 14607171), (113, 14348637), (159, 10197459), (271, 5983011), (333, 4869057), (339, 4782879), (477, 3399153), (813, 1994337), (999, 1623019), (1017, 1594293), (1431, 1133051), (1961, 826821), (2439, 664779), (3051, 531431), (4181, 387801), (5883, 275607), (5989, 270729), (7317, 221593), (10027, 161703), (12543, 129267), (14363, 112887), (17649, 91869), (17967, 90243), (30081, 53901), (30623, 52947), (37629, 43089)]