20921154

素因数分解:

$2^1\times 3^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{349}}^1$

素因数の和:554

約数の個数: 32

約数和(自身を含む): 42806400

約数和(自身を除く): 21885246

約数列:

[1, 2, 3, 6, 97, 103, 194, 206, 291, 309, 349, 582, 618, 698, 1047, 2094, 9991, 19982, 29973, 33853, 35947, 59946, 67706, 71894, 101559, 107841, 203118, 215682, 3486859, 6973718, 10460577, 20921154]

約数ペア:

[(1, 20921154), (2, 10460577), (3, 6973718), (6, 3486859), (97, 215682), (103, 203118), (194, 107841), (206, 101559), (291, 71894), (309, 67706), (349, 59946), (582, 35947), (618, 33853), (698, 29973), (1047, 19982), (2094, 9991)]