21647536

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71209}}^1$

素因数の和:71236

約数の個数: 20

約数和(自身を含む): 44150200

約数和(自身を除く): 22502664

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71209, 142418, 284836, 569672, 1139344, 1352971, 2705942, 5411884, 10823768, 21647536]

約数ペア:

[(1, 21647536), (2, 10823768), (4, 5411884), (8, 2705942), (16, 1352971), (19, 1139344), (38, 569672), (76, 284836), (152, 142418), (304, 71209)]