21290970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{383}}^1$

素因数の和:519

約数の個数: 64

約数和(自身を含む): 54743040

約数和(自身を除く): 33452070

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 109, 170, 218, 255, 327, 383, 510, 545, 654, 766, 1090, 1149, 1635, 1853, 1915, 2298, 3270, 3706, 3830, 5559, 5745, 6511, 9265, 11118, 11490, 13022, 18530, 19533, 27795, 32555, 39066, 41747, 55590, 65110, 83494, 97665, 125241, 195330, 208735, 250482, 417470, 626205, 709699, 1252410, 1419398, 2129097, 3548495, 4258194, 7096990, 10645485, 21290970]

約数ペア:

[(1, 21290970), (2, 10645485), (3, 7096990), (5, 4258194), (6, 3548495), (10, 2129097), (15, 1419398), (17, 1252410), (30, 709699), (34, 626205), (51, 417470), (85, 250482), (102, 208735), (109, 195330), (170, 125241), (218, 97665), (255, 83494), (327, 65110), (383, 55590), (510, 41747), (545, 39066), (654, 32555), (766, 27795), (1090, 19533), (1149, 18530), (1635, 13022), (1853, 11490), (1915, 11118), (2298, 9265), (3270, 6511), (3706, 5745), (3830, 5559)]