19331221

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2689}}^1$

素因数の和:2788

約数の個数: 16

約数和(自身を含む): 24102400

約数和(自身を除く): 4771179

約数列:

[1, 7, 13, 79, 91, 553, 1027, 2689, 7189, 18823, 34957, 212431, 244699, 1487017, 2761603, 19331221]

約数ペア:

[(1, 19331221), (7, 2761603), (13, 1487017), (79, 244699), (91, 212431), (553, 34957), (1027, 18823), (2689, 7189)]