21308940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39461}}^1$

素因数の和:39479

約数の個数: 48

約数和(自身を含む): 66296160

約数和(自身を除く): 44987220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39461, 78922, 118383, 157844, 197305, 236766, 355149, 394610, 473532, 591915, 710298, 789220, 1065447, 1183830, 1420596, 1775745, 2130894, 2367660, 3551490, 4261788, 5327235, 7102980, 10654470, 21308940]

約数ペア:

[(1, 21308940), (2, 10654470), (3, 7102980), (4, 5327235), (5, 4261788), (6, 3551490), (9, 2367660), (10, 2130894), (12, 1775745), (15, 1420596), (18, 1183830), (20, 1065447), (27, 789220), (30, 710298), (36, 591915), (45, 473532), (54, 394610), (60, 355149), (90, 236766), (108, 197305), (135, 157844), (180, 118383), (270, 78922), (540, 39461)]