21518900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16553}}^1$

素因数の和:16580

約数の個数: 36

約数和(自身を含む): 50291052

約数和(自身を除く): 28772152

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16553, 33106, 66212, 82765, 165530, 215189, 331060, 413825, 430378, 827650, 860756, 1075945, 1655300, 2151890, 4303780, 5379725, 10759450, 21518900]

約数ペア:

[(1, 21518900), (2, 10759450), (4, 5379725), (5, 4303780), (10, 2151890), (13, 1655300), (20, 1075945), (25, 860756), (26, 827650), (50, 430378), (52, 413825), (65, 331060), (100, 215189), (130, 165530), (260, 82765), (325, 66212), (650, 33106), (1300, 16553)]