21184100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{571}}^1$

素因数の和:645

約数の個数: 72

約数和(自身を含む): 53621568

約数和(自身を除く): 32437468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 53, 70, 100, 106, 140, 175, 212, 265, 350, 371, 530, 571, 700, 742, 1060, 1142, 1325, 1484, 1855, 2284, 2650, 2855, 3710, 3997, 5300, 5710, 7420, 7994, 9275, 11420, 14275, 15988, 18550, 19985, 28550, 30263, 37100, 39970, 57100, 60526, 79940, 99925, 121052, 151315, 199850, 211841, 302630, 399700, 423682, 605260, 756575, 847364, 1059205, 1513150, 2118410, 3026300, 4236820, 5296025, 10592050, 21184100]

約数ペア:

[(1, 21184100), (2, 10592050), (4, 5296025), (5, 4236820), (7, 3026300), (10, 2118410), (14, 1513150), (20, 1059205), (25, 847364), (28, 756575), (35, 605260), (50, 423682), (53, 399700), (70, 302630), (100, 211841), (106, 199850), (140, 151315), (175, 121052), (212, 99925), (265, 79940), (350, 60526), (371, 57100), (530, 39970), (571, 37100), (700, 30263), (742, 28550), (1060, 19985), (1142, 18550), (1325, 15988), (1484, 14275), (1855, 11420), (2284, 9275), (2650, 7994), (2855, 7420), (3710, 5710), (3997, 5300)]