20986624

素因数分解:

$2^8\times {\mathrm{73}}^1\times {\mathrm{1123}}^1$

素因数の和:1212

約数の個数: 36

約数和(自身を含む): 42502936

約数和(自身を除く): 21516312

約数列:

[1, 2, 4, 8, 16, 32, 64, 73, 128, 146, 256, 292, 584, 1123, 1168, 2246, 2336, 4492, 4672, 8984, 9344, 17968, 18688, 35936, 71872, 81979, 143744, 163958, 287488, 327916, 655832, 1311664, 2623328, 5246656, 10493312, 20986624]

約数ペア:

[(1, 20986624), (2, 10493312), (4, 5246656), (8, 2623328), (16, 1311664), (32, 655832), (64, 327916), (73, 287488), (128, 163958), (146, 143744), (256, 81979), (292, 71872), (584, 35936), (1123, 18688), (1168, 17968), (2246, 9344), (2336, 8984), (4492, 4672)]