989222787

素因数分解:

$3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{773}}^1$

素因数の和:890

約数の個数: 80

約数和(自身を含む): 1765190592

約数和(自身を除く): 775967805

約数列:

[1, 3, 7, 9, 21, 27, 37, 61, 63, 81, 111, 183, 189, 259, 333, 427, 549, 567, 773, 777, 999, 1281, 1647, 2257, 2319, 2331, 2997, 3843, 4941, 5411, 6771, 6957, 6993, 11529, 15799, 16233, 20313, 20871, 20979, 28601, 34587, 47153, 47397, 48699, 60939, 62613, 85803, 141459, 142191, 146097, 182817, 200207, 257409, 330071, 424377, 426573, 438291, 600621, 772227, 990213, 1273131, 1279719, 1744661, 1801863, 2316681, 2970639, 3819393, 5233983, 5405589, 8911917, 12212627, 15701949, 16216767, 26735751, 36637881, 47105847, 109913643, 141317541, 329740929, 989222787]

約数ペア:

[(1, 989222787), (3, 329740929), (7, 141317541), (9, 109913643), (21, 47105847), (27, 36637881), (37, 26735751), (61, 16216767), (63, 15701949), (81, 12212627), (111, 8911917), (183, 5405589), (189, 5233983), (259, 3819393), (333, 2970639), (427, 2316681), (549, 1801863), (567, 1744661), (773, 1279719), (777, 1273131), (999, 990213), (1281, 772227), (1647, 600621), (2257, 438291), (2319, 426573), (2331, 424377), (2997, 330071), (3843, 257409), (4941, 200207), (5411, 182817), (6771, 146097), (6957, 142191), (6993, 141459), (11529, 85803), (15799, 62613), (16233, 60939), (20313, 48699), (20871, 47397), (20979, 47153), (28601, 34587)]