20971592

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{491}}^1$

素因数の和:797

約数の個数: 32

約数和(自身を含む): 41623200

約数和(自身を除く): 20651608

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 281, 491, 562, 982, 1124, 1964, 2248, 3928, 5339, 9329, 10678, 18658, 21356, 37316, 42712, 74632, 137971, 275942, 551884, 1103768, 2621449, 5242898, 10485796, 20971592]

約数ペア:

[(1, 20971592), (2, 10485796), (4, 5242898), (8, 2621449), (19, 1103768), (38, 551884), (76, 275942), (152, 137971), (281, 74632), (491, 42712), (562, 37316), (982, 21356), (1124, 18658), (1964, 10678), (2248, 9329), (3928, 5339)]