21876645

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2341}}^1$

素因数の和:2445

約数の個数: 32

約数和(自身を含む): 40469760

約数和(自身を除く): 18593115

約数列:

[1, 3, 5, 7, 15, 21, 35, 89, 105, 267, 445, 623, 1335, 1869, 2341, 3115, 7023, 9345, 11705, 16387, 35115, 49161, 81935, 208349, 245805, 625047, 1041745, 1458443, 3125235, 4375329, 7292215, 21876645]

約数ペア:

[(1, 21876645), (3, 7292215), (5, 4375329), (7, 3125235), (15, 1458443), (21, 1041745), (35, 625047), (89, 245805), (105, 208349), (267, 81935), (445, 49161), (623, 35115), (1335, 16387), (1869, 11705), (2341, 9345), (3115, 7023)]