19320795

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 37699200

約数和(自身を除く): 18378405

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 101, 109, 117, 135, 195, 303, 327, 351, 505, 545, 585, 909, 981, 1313, 1417, 1515, 1635, 1755, 2727, 2943, 3939, 4251, 4545, 4905, 6565, 7085, 11009, 11817, 12753, 13635, 14715, 19695, 21255, 33027, 35451, 38259, 55045, 59085, 63765, 99081, 143117, 165135, 177255, 191295, 297243, 429351, 495405, 715585, 1288053, 1486215, 2146755, 3864159, 6440265, 19320795]

約数ペア:

[(1, 19320795), (3, 6440265), (5, 3864159), (9, 2146755), (13, 1486215), (15, 1288053), (27, 715585), (39, 495405), (45, 429351), (65, 297243), (101, 191295), (109, 177255), (117, 165135), (135, 143117), (195, 99081), (303, 63765), (327, 59085), (351, 55045), (505, 38259), (545, 35451), (585, 33027), (909, 21255), (981, 19695), (1313, 14715), (1417, 13635), (1515, 12753), (1635, 11817), (1755, 11009), (2727, 7085), (2943, 6565), (3939, 4905), (4251, 4545)]