21103590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 53084160

約数和(自身を除く): 31980570

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 127, 145, 174, 191, 254, 290, 381, 382, 435, 573, 635, 762, 870, 955, 1146, 1270, 1905, 1910, 2865, 3683, 3810, 5539, 5730, 7366, 11049, 11078, 16617, 18415, 22098, 24257, 27695, 33234, 36830, 48514, 55245, 55390, 72771, 83085, 110490, 121285, 145542, 166170, 242570, 363855, 703453, 727710, 1406906, 2110359, 3517265, 4220718, 7034530, 10551795, 21103590]

約数ペア:

[(1, 21103590), (2, 10551795), (3, 7034530), (5, 4220718), (6, 3517265), (10, 2110359), (15, 1406906), (29, 727710), (30, 703453), (58, 363855), (87, 242570), (127, 166170), (145, 145542), (174, 121285), (191, 110490), (254, 83085), (290, 72771), (381, 55390), (382, 55245), (435, 48514), (573, 36830), (635, 33234), (762, 27695), (870, 24257), (955, 22098), (1146, 18415), (1270, 16617), (1905, 11078), (1910, 11049), (2865, 7366), (3683, 5730), (3810, 5539)]