21052926

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 49412160

約数和(自身を除く): 28359234

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 41, 54, 74, 82, 111, 123, 222, 246, 257, 333, 369, 514, 666, 738, 771, 999, 1107, 1517, 1542, 1998, 2214, 2313, 3034, 4551, 4626, 6939, 9102, 9509, 10537, 13653, 13878, 19018, 21074, 27306, 28527, 31611, 40959, 57054, 63222, 81918, 85581, 94833, 171162, 189666, 256743, 284499, 389869, 513486, 568998, 779738, 1169607, 2339214, 3508821, 7017642, 10526463, 21052926]

約数ペア:

[(1, 21052926), (2, 10526463), (3, 7017642), (6, 3508821), (9, 2339214), (18, 1169607), (27, 779738), (37, 568998), (41, 513486), (54, 389869), (74, 284499), (82, 256743), (111, 189666), (123, 171162), (222, 94833), (246, 85581), (257, 81918), (333, 63222), (369, 57054), (514, 40959), (666, 31611), (738, 28527), (771, 27306), (999, 21074), (1107, 19018), (1517, 13878), (1542, 13653), (1998, 10537), (2214, 9509), (2313, 9102), (3034, 6939), (4551, 4626)]