21945963

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{419}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 11922837

約数列:

[1, 3, 13, 17, 39, 51, 79, 221, 237, 419, 663, 1027, 1257, 1343, 3081, 4029, 5447, 7123, 16341, 17459, 21369, 33101, 52377, 92599, 99303, 277797, 430313, 562717, 1290939, 1688151, 7315321, 21945963]

約数ペア:

[(1, 21945963), (3, 7315321), (13, 1688151), (17, 1290939), (39, 562717), (51, 430313), (79, 277797), (221, 99303), (237, 92599), (419, 52377), (663, 33101), (1027, 21369), (1257, 17459), (1343, 16341), (3081, 7123), (4029, 5447)]