21101310

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:367

約数の個数: 80

約数和(自身を含む): 57499200

約数和(自身を除く): 36397890

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 109, 135, 162, 218, 239, 270, 327, 405, 478, 545, 654, 717, 810, 981, 1090, 1195, 1434, 1635, 1962, 2151, 2390, 2943, 3270, 3585, 4302, 4905, 5886, 6453, 7170, 8829, 9810, 10755, 12906, 14715, 17658, 19359, 21510, 26051, 29430, 32265, 38718, 44145, 52102, 64530, 78153, 88290, 96795, 130255, 156306, 193590, 234459, 260510, 390765, 468918, 703377, 781530, 1172295, 1406754, 2110131, 2344590, 3516885, 4220262, 7033770, 10550655, 21101310]

約数ペア:

[(1, 21101310), (2, 10550655), (3, 7033770), (5, 4220262), (6, 3516885), (9, 2344590), (10, 2110131), (15, 1406754), (18, 1172295), (27, 781530), (30, 703377), (45, 468918), (54, 390765), (81, 260510), (90, 234459), (109, 193590), (135, 156306), (162, 130255), (218, 96795), (239, 88290), (270, 78153), (327, 64530), (405, 52102), (478, 44145), (545, 38718), (654, 32265), (717, 29430), (810, 26051), (981, 21510), (1090, 19359), (1195, 17658), (1434, 14715), (1635, 12906), (1962, 10755), (2151, 9810), (2390, 8829), (2943, 7170), (3270, 6453), (3585, 5886), (4302, 4905)]