21081648

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{62743}}^1$

素因数の和:62761

約数の個数: 40

約数和(自身を含む): 62242048

約数和(自身を除く): 41160400

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 62743, 125486, 188229, 250972, 376458, 439201, 501944, 752916, 878402, 1003888, 1317603, 1505832, 1756804, 2635206, 3011664, 3513608, 5270412, 7027216, 10540824, 21081648]

約数ペア:

[(1, 21081648), (2, 10540824), (3, 7027216), (4, 5270412), (6, 3513608), (7, 3011664), (8, 2635206), (12, 1756804), (14, 1505832), (16, 1317603), (21, 1003888), (24, 878402), (28, 752916), (42, 501944), (48, 439201), (56, 376458), (84, 250972), (112, 188229), (168, 125486), (336, 62743)]