21273413

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{577}}^1$

素因数の和:836

約数の個数: 16

約数和(自身を含む): 25524480

約数和(自身を除く): 4251067

約数列:

[1, 7, 23, 161, 229, 577, 1603, 4039, 5267, 13271, 36869, 92897, 132133, 924931, 3039059, 21273413]

約数ペア:

[(1, 21273413), (7, 3039059), (23, 924931), (161, 132133), (229, 92897), (577, 36869), (1603, 13271), (4039, 5267)]