21456552

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{68771}}^1$

素因数の和:68793

約数の個数: 32

約数和(自身を含む): 57768480

約数和(自身を除く): 36311928

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 68771, 137542, 206313, 275084, 412626, 550168, 825252, 894023, 1650504, 1788046, 2682069, 3576092, 5364138, 7152184, 10728276, 21456552]

約数ペア:

[(1, 21456552), (2, 10728276), (3, 7152184), (4, 5364138), (6, 3576092), (8, 2682069), (12, 1788046), (13, 1650504), (24, 894023), (26, 825252), (39, 550168), (52, 412626), (78, 275084), (104, 206313), (156, 137542), (312, 68771)]