20897734

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{821}}^1$

素因数の和:936

約数の個数: 32

約数和(自身を含む): 37285920

約数和(自身を除く): 16388186

約数列:

[1, 2, 11, 13, 22, 26, 89, 143, 178, 286, 821, 979, 1157, 1642, 1958, 2314, 9031, 10673, 12727, 18062, 21346, 25454, 73069, 117403, 146138, 234806, 803759, 949897, 1607518, 1899794, 10448867, 20897734]

約数ペア:

[(1, 20897734), (2, 10448867), (11, 1899794), (13, 1607518), (22, 949897), (26, 803759), (89, 234806), (143, 146138), (178, 117403), (286, 73069), (821, 25454), (979, 21346), (1157, 18062), (1642, 12727), (1958, 10673), (2314, 9031)]