20119904

素因数分解:

$2^5\times 7^1\times {\mathrm{89821}}^1$

素因数の和:89838

約数の個数: 24

約数和(自身を含む): 45270288

約数和(自身を除く): 25150384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 89821, 179642, 359284, 628747, 718568, 1257494, 1437136, 2514988, 2874272, 5029976, 10059952, 20119904]

約数ペア:

[(1, 20119904), (2, 10059952), (4, 5029976), (7, 2874272), (8, 2514988), (14, 1437136), (16, 1257494), (28, 718568), (32, 628747), (56, 359284), (112, 179642), (224, 89821)]