20691888

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{61583}}^1$

素因数の和:61601

約数の個数: 40

約数和(自身を含む): 61091328

約数和(自身を除く): 40399440

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 61583, 123166, 184749, 246332, 369498, 431081, 492664, 738996, 862162, 985328, 1293243, 1477992, 1724324, 2586486, 2955984, 3448648, 5172972, 6897296, 10345944, 20691888]

約数ペア:

[(1, 20691888), (2, 10345944), (3, 6897296), (4, 5172972), (6, 3448648), (7, 2955984), (8, 2586486), (12, 1724324), (14, 1477992), (16, 1293243), (21, 985328), (24, 862162), (28, 738996), (42, 492664), (48, 431081), (56, 369498), (84, 246332), (112, 184749), (168, 123166), (336, 61583)]