21301380

素因数分解:

$2^2\times 3^7\times 5^1\times {\mathrm{487}}^1$

素因数の和:517

約数の個数: 96

約数和(自身を含む): 67226880

約数和(自身を除く): 45925500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 487, 540, 729, 810, 972, 974, 1215, 1458, 1461, 1620, 1948, 2187, 2430, 2435, 2916, 2922, 3645, 4374, 4383, 4860, 4870, 5844, 7290, 7305, 8748, 8766, 9740, 10935, 13149, 14580, 14610, 17532, 21870, 21915, 26298, 29220, 39447, 43740, 43830, 52596, 65745, 78894, 87660, 118341, 131490, 157788, 197235, 236682, 262980, 355023, 394470, 473364, 591705, 710046, 788940, 1065069, 1183410, 1420092, 1775115, 2130138, 2366820, 3550230, 4260276, 5325345, 7100460, 10650690, 21301380]

約数ペア:

[(1, 21301380), (2, 10650690), (3, 7100460), (4, 5325345), (5, 4260276), (6, 3550230), (9, 2366820), (10, 2130138), (12, 1775115), (15, 1420092), (18, 1183410), (20, 1065069), (27, 788940), (30, 710046), (36, 591705), (45, 473364), (54, 394470), (60, 355023), (81, 262980), (90, 236682), (108, 197235), (135, 157788), (162, 131490), (180, 118341), (243, 87660), (270, 78894), (324, 65745), (405, 52596), (486, 43830), (487, 43740), (540, 39447), (729, 29220), (810, 26298), (972, 21915), (974, 21870), (1215, 17532), (1458, 14610), (1461, 14580), (1620, 13149), (1948, 10935), (2187, 9740), (2430, 8766), (2435, 8748), (2916, 7305), (2922, 7290), (3645, 5844), (4374, 4870), (4383, 4860)]