21051808

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{28603}}^1$

素因数の和:28636

約数の個数: 24

約数和(自身を含む): 43249248

約数和(自身を除く): 22197440

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 184, 368, 736, 28603, 57206, 114412, 228824, 457648, 657869, 915296, 1315738, 2631476, 5262952, 10525904, 21051808]

約数ペア:

[(1, 21051808), (2, 10525904), (4, 5262952), (8, 2631476), (16, 1315738), (23, 915296), (32, 657869), (46, 457648), (92, 228824), (184, 114412), (368, 57206), (736, 28603)]