21145320

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2797}}^1$

素因数の和:2824

約数の個数: 128

約数和(自身を含む): 80582400

約数和(自身を除く): 59437080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 2797, 3780, 5594, 7560, 8391, 11188, 13985, 16782, 19579, 22376, 25173, 27970, 33564, 39158, 41955, 50346, 55940, 58737, 67128, 75519, 78316, 83910, 97895, 100692, 111880, 117474, 125865, 151038, 156632, 167820, 176211, 195790, 201384, 234948, 251730, 293685, 302076, 335640, 352422, 377595, 391580, 469896, 503460, 528633, 587370, 604152, 704844, 755190, 783160, 881055, 1006920, 1057266, 1174740, 1409688, 1510380, 1762110, 2114532, 2349480, 2643165, 3020760, 3524220, 4229064, 5286330, 7048440, 10572660, 21145320]

約数ペア:

[(1, 21145320), (2, 10572660), (3, 7048440), (4, 5286330), (5, 4229064), (6, 3524220), (7, 3020760), (8, 2643165), (9, 2349480), (10, 2114532), (12, 1762110), (14, 1510380), (15, 1409688), (18, 1174740), (20, 1057266), (21, 1006920), (24, 881055), (27, 783160), (28, 755190), (30, 704844), (35, 604152), (36, 587370), (40, 528633), (42, 503460), (45, 469896), (54, 391580), (56, 377595), (60, 352422), (63, 335640), (70, 302076), (72, 293685), (84, 251730), (90, 234948), (105, 201384), (108, 195790), (120, 176211), (126, 167820), (135, 156632), (140, 151038), (168, 125865), (180, 117474), (189, 111880), (210, 100692), (216, 97895), (252, 83910), (270, 78316), (280, 75519), (315, 67128), (360, 58737), (378, 55940), (420, 50346), (504, 41955), (540, 39158), (630, 33564), (756, 27970), (840, 25173), (945, 22376), (1080, 19579), (1260, 16782), (1512, 13985), (1890, 11188), (2520, 8391), (2797, 7560), (3780, 5594)]