19871784

素因数分解:

$2^3\times 3^3\times {\mathrm{197}}^1\times {\mathrm{467}}^1$

素因数の和:679

約数の個数: 64

約数和(自身を含む): 55598400

約数和(自身を除く): 35726616

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 197, 216, 394, 467, 591, 788, 934, 1182, 1401, 1576, 1773, 1868, 2364, 2802, 3546, 3736, 4203, 4728, 5319, 5604, 7092, 8406, 10638, 11208, 12609, 14184, 16812, 21276, 25218, 33624, 42552, 50436, 91999, 100872, 183998, 275997, 367996, 551994, 735992, 827991, 1103988, 1655982, 2207976, 2483973, 3311964, 4967946, 6623928, 9935892, 19871784]

約数ペア:

[(1, 19871784), (2, 9935892), (3, 6623928), (4, 4967946), (6, 3311964), (8, 2483973), (9, 2207976), (12, 1655982), (18, 1103988), (24, 827991), (27, 735992), (36, 551994), (54, 367996), (72, 275997), (108, 183998), (197, 100872), (216, 91999), (394, 50436), (467, 42552), (591, 33624), (788, 25218), (934, 21276), (1182, 16812), (1401, 14184), (1576, 12609), (1773, 11208), (1868, 10638), (2364, 8406), (2802, 7092), (3546, 5604), (3736, 5319), (4203, 4728)]