21385009

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{337}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 23362560

約数和(自身を除く): 1977551

約数列:

[1, 23, 31, 89, 337, 713, 2047, 2759, 7751, 10447, 29993, 63457, 240281, 689839, 929783, 21385009]

約数ペア:

[(1, 21385009), (23, 929783), (31, 689839), (89, 240281), (337, 63457), (713, 29993), (2047, 10447), (2759, 7751)]