21032480

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:322

約数の個数: 96

約数和(自身を含む): 57697920

約数和(自身を除く): 36665440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 89, 112, 140, 160, 178, 211, 224, 280, 356, 422, 445, 560, 623, 712, 844, 890, 1055, 1120, 1246, 1424, 1477, 1688, 1780, 2110, 2492, 2848, 2954, 3115, 3376, 3560, 4220, 4984, 5908, 6230, 6752, 7120, 7385, 8440, 9968, 11816, 12460, 14240, 14770, 16880, 18779, 19936, 23632, 24920, 29540, 33760, 37558, 47264, 49840, 59080, 75116, 93895, 99680, 118160, 131453, 150232, 187790, 236320, 262906, 300464, 375580, 525812, 600928, 657265, 751160, 1051624, 1314530, 1502320, 2103248, 2629060, 3004640, 4206496, 5258120, 10516240, 21032480]

約数ペア:

[(1, 21032480), (2, 10516240), (4, 5258120), (5, 4206496), (7, 3004640), (8, 2629060), (10, 2103248), (14, 1502320), (16, 1314530), (20, 1051624), (28, 751160), (32, 657265), (35, 600928), (40, 525812), (56, 375580), (70, 300464), (80, 262906), (89, 236320), (112, 187790), (140, 150232), (160, 131453), (178, 118160), (211, 99680), (224, 93895), (280, 75116), (356, 59080), (422, 49840), (445, 47264), (560, 37558), (623, 33760), (712, 29540), (844, 24920), (890, 23632), (1055, 19936), (1120, 18779), (1246, 16880), (1424, 14770), (1477, 14240), (1688, 12460), (1780, 11816), (2110, 9968), (2492, 8440), (2848, 7385), (2954, 7120), (3115, 6752), (3376, 6230), (3560, 5908), (4220, 4984)]