20945328

素因数分解:

$2^4\times 3^1\times {\mathrm{131}}^1\times {\mathrm{3331}}^1$

素因数の和:3473

約数の個数: 40

約数和(自身を含む): 54538176

約数和(自身を除く): 33592848

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 131, 262, 393, 524, 786, 1048, 1572, 2096, 3144, 3331, 6288, 6662, 9993, 13324, 19986, 26648, 39972, 53296, 79944, 159888, 436361, 872722, 1309083, 1745444, 2618166, 3490888, 5236332, 6981776, 10472664, 20945328]

約数ペア:

[(1, 20945328), (2, 10472664), (3, 6981776), (4, 5236332), (6, 3490888), (8, 2618166), (12, 1745444), (16, 1309083), (24, 872722), (48, 436361), (131, 159888), (262, 79944), (393, 53296), (524, 39972), (786, 26648), (1048, 19986), (1572, 13324), (2096, 9993), (3144, 6662), (3331, 6288)]