21371580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2083}}^1$

素因数の和:2120

約数の個数: 96

約数和(自身を含む): 70022400

約数和(自身を除く): 48650820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 90, 95, 108, 114, 135, 171, 180, 190, 228, 270, 285, 342, 380, 513, 540, 570, 684, 855, 1026, 1140, 1710, 2052, 2083, 2565, 3420, 4166, 5130, 6249, 8332, 10260, 10415, 12498, 18747, 20830, 24996, 31245, 37494, 39577, 41660, 56241, 62490, 74988, 79154, 93735, 112482, 118731, 124980, 158308, 187470, 197885, 224964, 237462, 281205, 356193, 374940, 395770, 474924, 562410, 593655, 712386, 791540, 1068579, 1124820, 1187310, 1424772, 1780965, 2137158, 2374620, 3561930, 4274316, 5342895, 7123860, 10685790, 21371580]

約数ペア:

[(1, 21371580), (2, 10685790), (3, 7123860), (4, 5342895), (5, 4274316), (6, 3561930), (9, 2374620), (10, 2137158), (12, 1780965), (15, 1424772), (18, 1187310), (19, 1124820), (20, 1068579), (27, 791540), (30, 712386), (36, 593655), (38, 562410), (45, 474924), (54, 395770), (57, 374940), (60, 356193), (76, 281205), (90, 237462), (95, 224964), (108, 197885), (114, 187470), (135, 158308), (171, 124980), (180, 118731), (190, 112482), (228, 93735), (270, 79154), (285, 74988), (342, 62490), (380, 56241), (513, 41660), (540, 39577), (570, 37494), (684, 31245), (855, 24996), (1026, 20830), (1140, 18747), (1710, 12498), (2052, 10415), (2083, 10260), (2565, 8332), (3420, 6249), (4166, 5130)]