20563403

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{337}}^1\times {\mathrm{379}}^1$

素因数の和:746

約数の個数: 16

約数和(自身を含む): 24660480

約数和(自身を除く): 4097077

約数列:

[1, 7, 23, 161, 337, 379, 2359, 2653, 7751, 8717, 54257, 61019, 127723, 894061, 2937629, 20563403]

約数ペア:

[(1, 20563403), (7, 2937629), (23, 894061), (161, 127723), (337, 61019), (379, 54257), (2359, 8717), (2653, 7751)]