21293820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{839}}^1$

素因数の和:904

約数の個数: 96

約数和(自身を含む): 67737600

約数和(自身を除く): 46443780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 47, 54, 60, 90, 94, 108, 135, 141, 180, 188, 235, 270, 282, 423, 470, 540, 564, 705, 839, 846, 940, 1269, 1410, 1678, 1692, 2115, 2517, 2538, 2820, 3356, 4195, 4230, 5034, 5076, 6345, 7551, 8390, 8460, 10068, 12585, 12690, 15102, 16780, 22653, 25170, 25380, 30204, 37755, 39433, 45306, 50340, 75510, 78866, 90612, 113265, 118299, 151020, 157732, 197165, 226530, 236598, 354897, 394330, 453060, 473196, 591495, 709794, 788660, 1064691, 1182990, 1419588, 1774485, 2129382, 2365980, 3548970, 4258764, 5323455, 7097940, 10646910, 21293820]

約数ペア:

[(1, 21293820), (2, 10646910), (3, 7097940), (4, 5323455), (5, 4258764), (6, 3548970), (9, 2365980), (10, 2129382), (12, 1774485), (15, 1419588), (18, 1182990), (20, 1064691), (27, 788660), (30, 709794), (36, 591495), (45, 473196), (47, 453060), (54, 394330), (60, 354897), (90, 236598), (94, 226530), (108, 197165), (135, 157732), (141, 151020), (180, 118299), (188, 113265), (235, 90612), (270, 78866), (282, 75510), (423, 50340), (470, 45306), (540, 39433), (564, 37755), (705, 30204), (839, 25380), (846, 25170), (940, 22653), (1269, 16780), (1410, 15102), (1678, 12690), (1692, 12585), (2115, 10068), (2517, 8460), (2538, 8390), (2820, 7551), (3356, 6345), (4195, 5076), (4230, 5034)]