21847917

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{419}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 36126720

約数和(自身を除く): 14278803

約数列:

[1, 3, 7, 13, 21, 39, 91, 191, 273, 419, 573, 1257, 1337, 2483, 2933, 4011, 5447, 7449, 8799, 16341, 17381, 38129, 52143, 80029, 114387, 240087, 560203, 1040377, 1680609, 3121131, 7282639, 21847917]

約数ペア:

[(1, 21847917), (3, 7282639), (7, 3121131), (13, 1680609), (21, 1040377), (39, 560203), (91, 240087), (191, 114387), (273, 80029), (419, 52143), (573, 38129), (1257, 17381), (1337, 16341), (2483, 8799), (2933, 7449), (4011, 5447)]