21479864

素因数分解:

$2^3\times 7^1\times {\mathrm{541}}^1\times {\mathrm{709}}^1$

素因数の和:1263

約数の個数: 32

約数和(自身を含む): 46178400

約数和(自身を除く): 24698536

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 541, 709, 1082, 1418, 2164, 2836, 3787, 4328, 4963, 5672, 7574, 9926, 15148, 19852, 30296, 39704, 383569, 767138, 1534276, 2684983, 3068552, 5369966, 10739932, 21479864]

約数ペア:

[(1, 21479864), (2, 10739932), (4, 5369966), (7, 3068552), (8, 2684983), (14, 1534276), (28, 767138), (56, 383569), (541, 39704), (709, 30296), (1082, 19852), (1418, 15148), (2164, 9926), (2836, 7574), (3787, 5672), (4328, 4963)]