21736040

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{6547}}^1$

素因数の和:6641

約数の個数: 32

約数和(自身を含む): 49502880

約数和(自身を除く): 27766840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 6547, 13094, 26188, 32735, 52376, 65470, 130940, 261880, 543401, 1086802, 2173604, 2717005, 4347208, 5434010, 10868020, 21736040]

約数ペア:

[(1, 21736040), (2, 10868020), (4, 5434010), (5, 4347208), (8, 2717005), (10, 2173604), (20, 1086802), (40, 543401), (83, 261880), (166, 130940), (332, 65470), (415, 52376), (664, 32735), (830, 26188), (1660, 13094), (3320, 6547)]