31163139

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{461}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 54774720

約数和(自身を除く): 23611581

約数列:

[1, 3, 7, 9, 21, 29, 37, 63, 87, 111, 203, 259, 261, 333, 461, 609, 777, 1073, 1383, 1827, 2331, 3219, 3227, 4149, 7511, 9657, 9681, 13369, 17057, 22533, 29043, 40107, 51171, 67599, 93583, 119399, 120321, 153513, 280749, 358197, 494653, 842247, 1074591, 1483959, 3462571, 4451877, 10387713, 31163139]

約数ペア:

[(1, 31163139), (3, 10387713), (7, 4451877), (9, 3462571), (21, 1483959), (29, 1074591), (37, 842247), (63, 494653), (87, 358197), (111, 280749), (203, 153513), (259, 120321), (261, 119399), (333, 93583), (461, 67599), (609, 51171), (777, 40107), (1073, 29043), (1383, 22533), (1827, 17057), (2331, 13369), (3219, 9681), (3227, 9657), (4149, 7511)]