20313423

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:317

約数の個数: 40

約数和(自身を含む): 33175296

約数和(自身を除く): 12861873

約数列:

[1, 3, 9, 13, 27, 39, 81, 101, 117, 191, 303, 351, 573, 909, 1053, 1313, 1719, 2483, 2727, 3939, 5157, 7449, 8181, 11817, 15471, 19291, 22347, 35451, 57873, 67041, 106353, 173619, 201123, 250783, 520857, 752349, 1562571, 2257047, 6771141, 20313423]

約数ペア:

[(1, 20313423), (3, 6771141), (9, 2257047), (13, 1562571), (27, 752349), (39, 520857), (81, 250783), (101, 201123), (117, 173619), (191, 106353), (303, 67041), (351, 57873), (573, 35451), (909, 22347), (1053, 19291), (1313, 15471), (1719, 11817), (2483, 8181), (2727, 7449), (3939, 5157)]