21576408

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{128431}}^1$

素因数の和:128447

約数の個数: 32

約数和(自身を含む): 61647360

約数和(自身を除く): 40070952

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 128431, 256862, 385293, 513724, 770586, 899017, 1027448, 1541172, 1798034, 2697051, 3082344, 3596068, 5394102, 7192136, 10788204, 21576408]

約数ペア:

[(1, 21576408), (2, 10788204), (3, 7192136), (4, 5394102), (6, 3596068), (7, 3082344), (8, 2697051), (12, 1798034), (14, 1541172), (21, 1027448), (24, 899017), (28, 770586), (42, 513724), (56, 385293), (84, 256862), (168, 128431)]