20903696

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1627}}^1$

素因数の和:1719

約数の個数: 40

約数和(自身を含む): 44815584

約数和(自身を除く): 23911888

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 73, 88, 146, 176, 292, 584, 803, 1168, 1606, 1627, 3212, 3254, 6424, 6508, 12848, 13016, 17897, 26032, 35794, 71588, 118771, 143176, 237542, 286352, 475084, 950168, 1306481, 1900336, 2612962, 5225924, 10451848, 20903696]

約数ペア:

[(1, 20903696), (2, 10451848), (4, 5225924), (8, 2612962), (11, 1900336), (16, 1306481), (22, 950168), (44, 475084), (73, 286352), (88, 237542), (146, 143176), (176, 118771), (292, 71588), (584, 35794), (803, 26032), (1168, 17897), (1606, 13016), (1627, 12848), (3212, 6508), (3254, 6424)]