21477420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1283}}^1$

素因数の和:1332

約数の個数: 96

約数和(自身を含む): 69027840

約数和(自身を除く): 47550420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 90, 93, 108, 124, 135, 155, 180, 186, 270, 279, 310, 372, 465, 540, 558, 620, 837, 930, 1116, 1283, 1395, 1674, 1860, 2566, 2790, 3348, 3849, 4185, 5132, 5580, 6415, 7698, 8370, 11547, 12830, 15396, 16740, 19245, 23094, 25660, 34641, 38490, 39773, 46188, 57735, 69282, 76980, 79546, 115470, 119319, 138564, 159092, 173205, 198865, 230940, 238638, 346410, 357957, 397730, 477276, 596595, 692820, 715914, 795460, 1073871, 1193190, 1431828, 1789785, 2147742, 2386380, 3579570, 4295484, 5369355, 7159140, 10738710, 21477420]

約数ペア:

[(1, 21477420), (2, 10738710), (3, 7159140), (4, 5369355), (5, 4295484), (6, 3579570), (9, 2386380), (10, 2147742), (12, 1789785), (15, 1431828), (18, 1193190), (20, 1073871), (27, 795460), (30, 715914), (31, 692820), (36, 596595), (45, 477276), (54, 397730), (60, 357957), (62, 346410), (90, 238638), (93, 230940), (108, 198865), (124, 173205), (135, 159092), (155, 138564), (180, 119319), (186, 115470), (270, 79546), (279, 76980), (310, 69282), (372, 57735), (465, 46188), (540, 39773), (558, 38490), (620, 34641), (837, 25660), (930, 23094), (1116, 19245), (1283, 16740), (1395, 15396), (1674, 12830), (1860, 11547), (2566, 8370), (2790, 7698), (3348, 6415), (3849, 5580), (4185, 5132)]